Just War
/dʒʌst wɔːr/ — Lat. bellum iustum
noun / ethical doctrine
From Latin bellum iustum (righteous war). The just war tradition, rooted in Augustine and developed by Aquinas, establishes moral criteria under which warfare may be legitimate: just cause, legitimate authority, right intention, proportionality, last resort, and reasonable chance of success. Scripture provides numerous examples of God commanding war for righteous purposes while also condemning unjust aggression.

📖 Biblical Definition

Scripture does not teach absolute pacifism. God commanded Israel to wage war against the Canaanites as an instrument of divine judgment (Deuteronomy 20:16-18). The magistrate "beareth not the sword in vain: for He is the minister of God, a revenger to execute wrath upon Him that doeth evil" (Romans 13:4). Ecclesiastes declares "a time of war, and a time of peace" (Ecclesiastes 3:8). Biblical just war requires that force be used only in defense of the innocent, under legitimate authority, with righteous intent — never for greed, vengeance, or imperial ambition. The Christian soldier fights to protect, not to plunder.

📜 Webster 1828 Definition

WAR: A contest between nations or states, carried on by force for defense or conquest.

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WAR, n. [Sax. werre.] A contest between nations or states, carried on by force, either for defense, or for revenging insults and redressing wrongs, for the extension of commerce or acquisition of territory, or for obtaining and establishing the superiority and dominion of one over the other. Webster recognized both just and unjust causes for war, and his definition reflects the distinction between defensive warfare and aggressive conquest.

📖 Key Scripture

Romans 13:4 — "He beareth not the sword in vain: for He is the minister of God, a revenger to execute wrath upon Him that doeth evil."

Ecclesiastes 3:8 — "A time to love, and a time to hate; a time of war, and a time of peace."

Luke 3:14 — "And the soldiers likewise demanded of him... Do violence to no man, neither accuse any falsely."

Psalm 144:1 — "Blessed be the LORD my strength, which teacheth my hands to war, and my fingers to fight."

⚠️ Modern Corruption

Just war doctrine is either abandoned for pacifism or abused to justify every military adventure.

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Two errors prevail. Progressive Christianity embraces absolute pacifism, insisting that Jesus' teaching on turning the other cheek prohibits all use of force — a position that leaves the innocent defenseless and contradicts Romans 13. On the other extreme, nationalist Christianity baptizes every military action as righteous, confusing patriotism with divine mandate and treating geopolitical interest as just cause. Both errors fail the biblical test. Just war doctrine holds the tension: force is sometimes necessary to restrain evil, but it must meet strict moral criteria and be wielded with humility, not triumphalism.

Usage

• "The Bible does not teach pacifism — it teaches that the sword is given to the magistrate to punish evil, and that this authority carries solemn moral responsibility."

• "Just war requires just cause, right authority, and righteous intent — not every war is just, and no war is holy merely because our side fights it."

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