What does the Bible say about war?
The Bible neither glorifies war nor absolutely forbids it. It assumes war as a tragic reality in a fallen world, regulates how it should be waged justly, and promises a coming day when nations "shall beat their swords into plowshares."
Three Christian traditions emerge: pacifism (no Christian may fight), just-war theory (war is permissible under strict conditions), and crusade (rare, mostly rejected).
Just-war criteria, developed from Augustine forward: just cause, legitimate authority, right intention, last resort, proportional means, civilian protection.
Whatever the framework, the Bible’s ultimate vision is peace — beaten swords, lions with lambs, the Prince of Peace reigning forever.
Original BibleDawn answer · reviewed 2026-06. Drafted with AI assistance and reviewed for accuracy.