Contradiction with Deuteronomy 20:16-17
These verses command the Israelites to completely destroy the Canaanites, which contradicts Judges 1:5 where only Adoni-Bezek is defeated, and many Canaanite inhabitants are left alive.
Deuteronomy 20:16-17: But of the cities of these people, which the LORD thy God doth give thee [for] an inheritance, thou shalt save alive nothing that breatheth:
Contradiction with Joshua 24:12-13
These verses describe God driving out nations without the Israelites needing to fight, contradicting Judges 1:5 where they engage in combat.
Joshua 24:12-13: And I sent the hornet before you, which drave them out from before you, [even] the two kings of the Amorites; [but] not with thy sword, nor with thy bow.
Contradiction with Exodus 23:29-30
These verses indicate God will not drive out the Canaanites quickly, contrasting with the immediate victory described in Judges 1:5.
Exodus 23:29-30: I will not drive them out from before thee in one year; lest the land become desolate, and the beast of the field multiply against thee.
Contradiction with Joshua 11:19-20
These verses indicate that no cities made peace with Israel except the Hivites, while in Judges 1:5, there is a battle rather than an invitation for peace.
Joshua 11:19-20: There was not a city that made peace with the children of Israel, save the Hivites the inhabitants of Gibeon: all [other] they took in battle.
Contradiction with Numbers 33:52
This verse commands the Israelites to drive out all the inhabitants and destroy their high places, while Judges 1:5 does not mention any such destruction happening immediately.
Numbers 33:52: Then ye shall drive out all the inhabitants of the land from before you, and destroy all their pictures, and destroy all their molten images, and quite pluck down all their high places: