Contradiction with Judges 1:18
Joshua 13:2 mentions that certain areas, including Gaza, were not conquered, but Judges 1:18 states Judah took Gaza.
Judges 1:18: Also Judah took Gaza with the coast thereof, and Askelon with the coast thereof, and Ekron with the coast thereof.
Contradiction with Deuteronomy 7:22
Joshua 13:2 lists unconquered lands, while Deuteronomy 7:22 explains God would not drive out nations quickly.
Deuteronomy 7:22: And the LORD thy God will put out those nations before thee by little and little: thou mayest not consume them at once, lest the beasts of the field increase upon thee. [put...: Heb. pluck off]
Contradiction with Numbers 33:53
Joshua 13:2 refers to incomplete land possessions, contrasting Numbers 33:53 instructions to possess the land.
Numbers 33:53: And ye shall dispossess [the inhabitants] of the land, and dwell therein: for I have given you the land to possess it.
Contradiction with Psalm 44:3
Joshua 13:2 acknowledges unpossessed territories, while Psalm 44:3 states God gave the land through divine intervention.
Psalm 44:3: For they got not the land in possession by their own sword, neither did their own arm save them: but thy right hand, and thine arm, and the light of thy countenance, because thou hadst a favour unto them.