New Advent, sometimes referred to as the Catholic Encyclopedia, has summarized several resources that discuss the right of self-defense including that from Thomas Aquinas’ Summa Theologica. Sources are at the end.
The Right of Self Defense
Ethically the subject of self-defense regards the right of a private person to employ force against any one who unjustly attacks his life or person, his property or good name. While differing among themselves on some of the more subtle and less practical points comprised in this topic, our moralists may be said to be unanimous on the main principles and their application regarding the right of self-defense. The teaching may be summarized as follows:
Defense of life and person
Everyone has the right to defend his life against the attacks of an unjust aggressor. For this end he may employ whatever force is necessary and even take the life of an unjust assailant. As bodily integrity is included in the good of life, it may be defended in the same way as life itself. It must be observed however that no more injury may be inflicted on the assailant than is necessary to defeat his purpose. If, for example, he can be driven off by a call for help or by inflicting a slight wound on him, he may not lawfully be slain. Again the unjust attack must be actually begun, at least morally speaking, not merely planned or intended for some future time or occasion. generally speaking one is not bound to preserve one’s own life at the expense of the assailant’s; one may, out of charity, forego one’s right in the matter. Sometimes, however, one may be bound to defend one’s own life to the utmost on account of one’s duty of state or other obligations. The life of another person may be defended on the same conditions by us as our own. For since each person has the right to defend his life unjustly attacked, what he can lawfully do through his own efforts he may also do through the agency of others. Sometimes, too, charity, natural affection, or official duty imposed the obligation of defending others. A father ought, for example, to defend the lives of his children; a husband, his wife; and all ought to defend the life of one whose death would be a serious loss to the community. Soldiers, policemen, and private guards hired for that purpose are bound in justice to safeguard the lives of those entrusted to them.
Defense of property
It is lawful to defend one’s material goods even at the expense of the agressor’s life; for neither justice nor charity require that one should sacrifice possessions, even though they be of less value than humanlife in order to preserve the life of a man who wantonly exposes it in order to do an injustice. Here, however, we must recall the principle that in extreme necessity every man has a right to appropriate whatever is necessary to preserve his life. The starving man who snatches a meal is not an unjust agressor; consequently it is not lawful to use force against him. Again, the property which may be defended at the expense of the agressor’s life must be of considerable value; for charity forbids that in order to protect ourselves from a trivial loss we should deprive a neighbor of his life. Thefts or robberies, however, of small values are to be considered not in their individual, but in their cumulative, aspect. A thief may be slain in the act of carrying away stolenproperty provided that it cannot be recovered from him by any other means; if, for example, he can be made to abandon his spoil through fright, then it would not be lawful to shoot him. If he has carried the goods away to safety he cannot then be killed in order to recover them; but the owner may endeavor to take them from him, and if the thief resists with violence he may be killed in self-defense.
Honor
Since it is lawful to take life in the legitimate defense of one’s material goods, it is evidently also lawful to do so in defense of chastity which is a good of a much higher order. With regard to honor or reputation, it is not lawful to kill one to prevent an insult or an attack upon our reputation which we believe he intends, or threatens. Nor may we take a life to avenge an insult already offered. The proceeding would not be defense of our honor or reputation, but revenge. Besides, in the general estimation honor and reputation may be sufficiently protected without taking the life of the offender.
Sources
Zigliara, Summa Philosophica, III, I, iii; St. Thomas, Summa Theolgica, II-II, Q lxvii, a. 7; Billuart, Cursus Theolgiae: in II-II St. Thomae, d. X, a. V.
And you will hear of wars and rumors of wars. See that you are not alarmed, for this must take place, but the end is not yet. For nation will rise against nation, and kingdom against kingdom, and there will be famines and earthquakes in various places.
For he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer.
Jesus answered, “My kingdom is not of this world. If my kingdom were of this world, my servants would have been fighting, that I might not be delivered over to the Jews. But my kingdom is not from the world.”
“When you go out to war against your enemies, and see horses and chariots and an army larger than your own, you shall not be afraid of them, for the Lord your God is with you, who brought you up out of the land of Egypt. And when you draw near to the battle, the priest shall come forward and speak to the people and shall say to them, ‘Hear, O Israel, today you are drawing near for battle against your enemies: let not your heart faint. Do not fear or panic or be in dread of them, for the Lord your God is he who goes with you to fight for you against your enemies, to give you the victory.’
“But I say to you who hear, Love your enemies, do good to those who hate you, bless those who curse you, pray for those who abuse you. To one who strikes you on the cheek, offer the other also, and from one who takes away your cloak do not withhold your tunic either. Give to everyone who begs from you, and from one who takes away your goods do not demand them back. And as you wish that others would do to you, do so to them.
Let every person be subject to the governing authorities. For there is no authority except from God, and those that exist have been instituted by God. Therefore whoever resists the authorities resists what God has appointed, and those who resist will incur judgment. For rulers are not a terror to good conduct, but to bad. Would you have no fear of the one who is in authority? Then do what is good, and you will receive his approval, for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Therefore one must be in subjection, not only to avoid God’s wrath but also for the sake of conscience. …
He shall judge between the nations, and shall decide disputes for many peoples; and they shall beat their swords into plowshares, and their spears into pruning hooks; nation shall not lift up sword against nation, neither shall they learn war anymore.
Give to them according to their work and according to the evil of their deeds; give to them according to the work of their hands; render them their due reward.
Now go and strike Amalek and devote to destruction all that they have. Do not spare them, but kill both man and woman, child and infant, ox and sheep, camel and donkey.’”
He said to them, “But now let the one who has a moneybag take it, and likewise a knapsack. And let the one who has no sword sell his cloak and buy one.
Let every person be subject to the governing authorities. For there is no authority except from God, and those that exist have been instituted by God. Therefore whoever resists the authorities resists what God has appointed, and those who resist will incur judgment. For rulers are not a terror to good conduct, but to bad. Would you have no fear of the one who is in authority? Then do what is good, and you will receive his approval, for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Therefore one must be in subjection, not only to avoid God’s wrath but also for the sake of conscience. …
“You have heard that it was said, ‘An eye for an eye and a tooth for a tooth.’ But I say to you, Do not resist the one who is evil. But if anyone slaps you on the right cheek, turn to him the other also. And if anyone would sue you and take your tunic, let him have your cloak as well. And if anyone forces you to go one mile, go with him two miles. Give to the one who begs from you, and do not refuse the one who would borrow from you. …
A Psalm of David. The Lord is my shepherd; I shall not want. He makes me lie down in green pastures. He leads me beside still waters. He restores my soul. He leads me in paths of righteousness for his name’s sake. Even though I walk through the valley of the shadow of death, I will fear no evil, for you are with me; your rod and your staff, they comfort me. You prepare a table before me in the presence of my enemies; you anoint my head with oil; my cup overflows. …
What causes quarrels and what causes fights among you? Is it not this, that your passions are at war within you? You desire and do not have, so you murder. You covet and cannot obtain, so you fight and quarrel. You do not have, because you do not ask.
Or what king, going out to encounter another king in war, will not sit down first and deliberate whether he is able with ten thousand to meet him who comes against him with twenty thousand?
This charge I entrust to you, Timothy, my child, in accordance with the prophecies previously made about you, that by them you may wage the good warfare,
And the officers shall speak further to the people, and say, ‘Is there any man who is fearful and fainthearted? Let him go back to his house, lest he make the heart of his fellows melt like his own.’
Be subject for the Lord’s sake to every human institution, whether it be to the emperor as supreme, or to governors as sent by him to punish those who do evil and to praise those who do good.
As it is written: “None is righteous, no, not one; no one understands; no one seeks for God. All have turned aside; together they have become worthless; no one does good, not even one.” “Their throat is an open grave; they use their tongues to deceive.” “The venom of asps is under their lips.” “Their mouth is full of curses and bitterness.” …
Let every person be subject to the governing authorities. For there is no authority except from God, and those that exist have been instituted by God. Therefore whoever resists the authorities resists what God has appointed, and those who resist will incur judgment. For rulers are not a terror to good conduct, but to bad. Would you have no fear of the one who is in authority? Then do what is good, and you will receive his approval, for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer.
“When you go out to war against your enemies, and see horses and chariots and an army larger than your own, you shall not be afraid of them, for the Lord your God is with you, who brought you up out of the land of Egypt. And when you draw near to the battle, the priest shall come forward and speak to the people and shall say to them, ‘Hear, O Israel, today you are drawing near for battle against your enemies: let not your heart faint. Do not fear or panic or be in dread of them, for the Lord your God is he who goes with you to fight for you against your enemies, to give you the victory.’ Then the officers shall speak to the people, saying, ‘Is there any man who has built a new house and has not dedicated it? Let him go back to his house, lest he die in the battle and another man dedicate it. …
“When you go out to war against your enemies, and see horses and chariots and an army larger than your own, you shall not be afraid of them, for the Lord your God is with you, who brought you up out of the land of Egypt.
Let every person be subject to the governing authorities. For there is no authority except from God, and those that exist have been instituted by God. Therefore whoever resists the authorities resists what God has appointed, and those who resist will incur judgment. For rulers are not a terror to good conduct, but to bad. Would you have no fear of the one who is in authority? Then do what is good, and you will receive his approval, for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer. Therefore one must be in subjection, not only to avoid God’s wrath but also for the sake of conscience.
Soldiers also asked him, “And we, what shall we do?” And he said to them, “Do not extort money from anyone by threats or by false accusation, and be content with your wages.”
“You have heard that it was said to those of old, ‘You shall not murder; and whoever murders will be liable to judgment.’ But I say to you that everyone who is angry with his brother will be liable to judgment; whoever insults his brother will be liable to the council; and whoever says, ‘You fool!’ will be liable to the hell of fire.
When he entered Capernaum, a centurion came forward to him, appealing to him, “Lord, my servant is lying paralyzed at home, suffering terribly.” And he said to him, “I will come and heal him.” But the centurion replied, “Lord, I am not worthy to have you come under my roof, but only say the word, and my servant will be healed. For I too am a man under authority, with soldiers under me. And I say to one, ‘Go,’ and he goes, and to another, ‘Come,’ and he comes, and to my servant, ‘Do this,’ and he does it.” …
Rebuke the beasts that dwell among the reeds, the herd of bulls with the calves of the peoples. Trample underfoot those who lust after tribute; scatter the peoples who delight in war.
First of all, then, I urge that supplications, prayers, intercessions, and thanksgivings be made for all people, for kings and all who are in high positions, that we may lead a peaceful and quiet life, godly and dignified in every way.
Do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your minds in Christ Jesus.
Fight the good fight of the faith. Take hold of the eternal life to which you were called and about which you made the good confession in the presence of many witnesses.
But the women and the little ones, the livestock, and everything else in the city, all its spoil, you shall take as plunder for yourselves. And you shall enjoy the spoil of your enemies, which the Lord your God has given you.
And when you go to war in your land against the adversary who oppresses you, then you shall sound an alarm with the trumpets, that you may be remembered before the Lord your God, and you shall be saved from your enemies.
But if the watchman sees the sword coming and does not blow the trumpet, so that the people are not warned, and the sword comes and takes any one of them, that person is taken away in his iniquity, but his blood I will require at the watchman’s hand.
For to us a child is born, to us a son is given; and the government shall be upon his shoulder, and his name shall be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace.
Share in suffering as a good soldier of Christ Jesus. No soldier gets entangled in civilian pursuits, since his aim is to please the one who enlisted him.
That is, in Christ God was reconciling the world to himself, not counting their trespasses against them, and entrusting to us the message of reconciliation.
For rulers are not a terror to good conduct, but to bad. Would you have no fear of the one who is in authority? Then do what is good, and you will receive his approval, for he is God’s servant for your good. But if you do wrong, be afraid, for he does not bear the sword in vain. For he is the servant of God, an avenger who carries out God’s wrath on the wrongdoer.
And Moses said to the people, “Fear not, stand firm, and see the salvation of the Lord, which he will work for you today. For the Egyptians whom you see today, you shall never see again. The Lord will fight for you, and you have only to be silent.”
Then the officers shall speak to the people, saying, ‘Is there any man who has built a new house and has not dedicated it? Let him go back to his house, lest he die in the battle and another man dedicate it.
For we do not wrestle against flesh and blood, but against the rulers, against the authorities, against the cosmic powers over this present darkness, against the spiritual forces of evil in the heavenly places.
At Caesarea there was a man named Cornelius, a centurion of what was known as the Italian Cohort, a devout man who feared God with all his household, gave alms generously to the people, and prayed continually to God. About the ninth hour of the day he saw clearly in a vision an angel of God come in and say to him, “Cornelius.” And he stared at him in terror and said, “What is it, Lord?” And he said to him, “Your prayers and your alms have ascended as a memorial before God. And now send men to Joppa and bring one Simon who is called Peter. …
And I looked, and behold, a pale horse! And its rider’s name was Death, and Hades followed him. And they were given authority over a fourth of the earth, to kill with sword and with famine and with pestilence and by wild beasts of the earth.
For every boot of the tramping warrior in battle tumult and every garment rolled in blood will be burned as fuel for the fire. For to us a child is born, to us a son is given; and the government shall be upon his shoulder, and his name shall be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace. Of the increase of his government and of peace there will be no end, on the throne of David and over his kingdom, to establish it and to uphold it with justice and with righteousness from this time forth and forevermore. The zeal of the Lord of hosts will do this.
And the Lord said to Joshua, “Do not fear and do not be dismayed. Take all the fighting men with you, and arise, go up to Ai. See, I have given into your hand the king of Ai, and his people, his city, and his land. And you shall do to Ai and its king as you did to Jericho and its king. Only its spoil and its livestock you shall take as plunder for yourselves. Lay an ambush against the city, behind it.”
And is there any man who has planted a vineyard and has not enjoyed its fruit? Let him go back to his house, lest he die in the battle and another man enjoy its fruit.
“When you go out to war against your enemies, and see horses and chariots and an army larger than your own, you shall not be afraid of them, for the Lord your God is with you, who brought you up out of the land of Egypt. And when you draw near to the battle, the priest shall come forward and speak to the people and shall say to them, ‘Hear, O Israel, today you are drawing near for battle against your enemies: let not your heart faint. Do not fear or panic or be in dread of them, for the Lord your God is he who goes with you to fight for you against your enemies, to give you the victory.’ Then the officers shall speak to the people, saying, ‘Is there any man who has built a new house and has not dedicated it? Let him go back to his house, lest he die in the battle and another man dedicate it. …
Behold, I am bringing against you a nation from afar, O house of Israel, declares the Lord. It is an enduring nation; it is an ancient nation, a nation whose language you do not know, nor can you understand what they say. Their quiver is like an open tomb; they are all mighty warriors. They shall eat up your harvest and your food; they shall eat up your sons and your daughters; they shall eat up your flocks and your herds; they shall eat up your vines and your fig trees; your fortified cities in which you trust they shall beat down with the sword.” “But even in those days, declares the Lord, I will not make a full end of you. And when your people say, ‘Why has the Lord our God done all these things to us?’ you shall say to them, ‘As you have forsaken me and served foreign gods in your land, so you shall serve foreigners in a land that is not yours.’”
Seeing the crowds, he went up on the mountain, and when he sat down, his disciples came to him. And he opened his mouth and taught them, saying: “Blessed are the poor in spirit, for theirs is the kingdom of heaven. “Blessed are those who mourn, for they shall be comforted. “Blessed are the meek, for they shall inherit the earth. …
Then King David rose to his feet and said: “Hear me, my brothers and my people. I had it in my heart to build a house of rest for the ark of the covenant of the Lord and for the footstool of our God, and I made preparations for building. But God said to me, ‘You may not build a house for my name, for you are a man of war and have shed blood.’
Repay no one evil for evil, but give thought to do what is honorable in the sight of all. If possible, so far as it depends on you, live peaceably with all. Beloved, never avenge yourselves, but leave it to the wrath of God, for it is written, “Vengeance is mine, I will repay, says the Lord.” To the contrary, “if your enemy is hungry, feed him; if he is thirsty, give him something to drink; for by so doing you will heap burning coals on his head.” Do not be overcome by evil, but overcome evil with good.
And is there any man who has betrothed a wife and has not taken her? Let him go back to his house, lest he die in the battle and another man take her.’
Now King David was old and advanced in years. And although they covered him with clothes, he could not get warm. Therefore his servants said to him, “Let a young woman be sought for my lord the king, and let her wait on the king and be in his service. Let her lie in your arms, that my lord the king may be warm.” So they sought for a beautiful young woman throughout all the territory of Israel, and found Abishag the Shunammite, and brought her to the king. The young woman was very beautiful, and she was of service to the king and attended to him, but the king knew her not. Now Adonijah the son of Haggith exalted himself, saying, “I will be king.” And he prepared for himself chariots and horsemen, and fifty men to run before him. …
For though we walk in the flesh, we are not waging war according to the flesh. For the weapons of our warfare are not of the flesh but have divine power to destroy strongholds. We destroy arguments and every lofty opinion raised against the knowledge of God, and take every thought captive to obey Christ,
From his mouth comes a sharp sword with which to strike down the nations, and he will rule them with a rod of iron. He will tread the winepress of the fury of the wrath of God the Almighty.
I appeal to you therefore, brothers, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship. Do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect. For by the grace given to me I say to everyone among you not to think of himself more highly than he ought to think, but to think with sober judgment, each according to the measure of faith that God has assigned. For as in one body we have many members, and the members do not all have the same function, so we, though many, are one body in Christ, and individually members one of another. …
“When you go near a city to fight against it, then proclaim an offer of peace to it. And it shall be that if they accept your offer of peace, and open to you, then all the people who are found in it shall be placed under tribute to you, and serve you. Now if the city will not make peace with you, but makes war against you, then you shall besiege it. And when the Lord your God delivers it into your hands, you shall strike every male in it with the edge of the sword. But the women, the little ones, the livestock, and all that is in the city, all its spoil, you shall plunder for yourself; and you shall eat the enemies’ plunder which the Lord your God gives you. Thus you shall do to all the cities which are very far from you, which are not of the cities of these nations.” – Deuteronomy 20:10-15
From the article:
The Bible teaches that war is a result of man’s rebellion (Romans 3:10-18); that war is not something to be desired (1 Peter 3:8-12); and that Christians are looking forward to a day when all war will be eradicated (Isaiah 2:4). In this sense, Jesus is anti-war and his followers should be as well. But not all physical violence is immoral. The Bible teaches that physical violence can be a noble and righteous engagement.
St. Augustine By Philippe de Champaigne – Los Angeles County Museum of Art: online database: entry 171584, Public Domain, https://commons.wikimedia.org/w/index.php?curid=8481227
John Dear, a writer with the national Catholic Reporter describes a conversation he had with pacifist, progressive theologian Walter Wink about non-violence.
Excerpt:
The fifth antithesis in the Sermon on the Mount is one of the key teachings of nonviolent resistance to evil in history. It’s long been interpreted as passivity, but instead it calls for creative nonviolent action. Jesus wants us to resist evil with active nonviolence, stand our ground, speak the truth, insist on our common humanity, disarm our opponent, risk suffering love, trust in God, and work for the conversion of our opponent, so that the one who does evil or supports systemic injustice, changes. The goal is to lead the opponent to a change of heart, to melt his heart, win him over to the truth, stop the violence, and help others discover God’s reign of love and peace. Like every good teacher, Jesus does not leave us just with the theory. He gives five concrete examples about how to do this.
In his essay “Why I Am Not a Pacifist,” C. S. Lewis asks “Does anyone suppose,” he asks, “that our Lord’s hearers understood him to mean that if a homicidal maniac, attempting to murder a third party, tried to knock me out of the way, I must stand aside and let him get his victim?”1
From the Crossway series What did Jesus Teach come this analysis of non-violence.
Does Jesus’s teaching in the sermon on the Mount to “turn the other cheek” and not resist evil require pacifism on the part of Christians?
Since most religious pacifists ground their convictions in a purported nonviolent “love ethic” of Jesus that is understood to be the teaching of Matthew 5:38–42, it is imperative that the meaning of Jesus’ teaching in the Sermon on the Mount be assessed.
Matthew 5:38–42 is one of six case illustrations of Jesus’s teaching on the law (Matthew 5:17). With the other five, it is Jesus’s affirmation of the ethical requirements of Old Testament law—requirements that are enduring. And in similar fashion, it begins with the formula that Jesus has already used four times in this body of teaching—“You have heard that it was said, . . . But I tell you . . .”
While some students of the biblical text interpret these particular words as referring to Mosaic law, such a reading does not fit the context. To introduce his teaching, Jesus has just reiterated that the law as revealed in the old covenant, continually reaffirmed by the prophets, is not to be set aside (Matthew 5:17); it is binding.
Jesus cannot be contradicting himself. What the context does require, however, is that contemporary notions— indeed, contemporary distortions of the law—need adjustment. One such illustration of contemporary error concerns retaliation.
Full article: https://www.crossway.org/articles/what-did-jesus-teach-about-violence-and-turning-the-other-cheek/
Those who built on the wall, and those who carried burdens, loaded themselves so that with one hand they worked at construction, and with the other held a weapon. NEH 4:17
The Wall is part blog, part journal, part bulletin board, and part archive I set up in order to further the discussion about the use of force in defense of church and community. Learn MORE ABOUT THE WALL.
