Contradiction with Joshua 15:14
States that Caleb drove out the Anakims, while Joshua 11:21 suggests Joshua did.
Joshua 15:14: And Caleb drove thence the three sons of Anak, Sheshai, and Ahiman, and Talmai, the children of Anak.
Contradiction with Judges 1:19
Implies that Judah could not drive out the inhabitants in the valleys which contradicts the complete destruction claimed in Joshua 11:21.
Judges 1:19: And the LORD was with Judah; and he drave out [the inhabitants of] the mountain; but could not drive out the inhabitants of the valley, because they had chariots of iron. [drave...: or, possessed the mountain]
Contradiction with Numbers 13:33
Describes the Anakims as giants that were feared, yet Joshua 11:21 narrates their destruction.
Numbers 13:33: And there we saw the giants, the sons of Anak, [which come] of the giants: and we were in our own sight as grasshoppers, and so we were in their sight.
Contradiction with Deuteronomy 7:22
Indicates that God would not clear out these nations quickly, but Joshua 11:21 suggests a swift action.
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]
Paradox #1
The contradiction with this verse lies in the claim of the complete destruction of the Anakim, a group of people described as giants. Archaeological and historical evidence does not support the annihilation of a distinct population of giants in the regions mentioned. This can conflict with scientific understanding of human history and anthropology, as there is no evidence of such giant people existing or being completely wiped out in the way described.
Paradox #2
One possible contradiction in this verse could be the conflict between the act of destruction and the value of mercy or compassion. It may raise questions about the morality of eliminating entire groups of people and whether such actions are justifiable, especially considering principles of love and forgiveness in other parts of the Bible.