Contradiction with Genesis 9:25
Contradicts the blessing implied for Canaan's lineage by discussing servitude as a curse.
Genesis 9:25: And he said, Cursed [be] Canaan; a servant of servants shall he be unto his brethren.
Contradiction with Genesis 10:6
Lists Canaan as Ham's son directly, seemingly without the intermediary lineage mentioned in Genesis 10:15.
Genesis 10:6: And the sons of Ham; Cush, and Mizraim, and Phut, and Canaan.
Contradiction with Numbers 13:29
Describes Canaanites living by the sea and the Jordan, constrasting with the specific descendants listed in Genesis 10:15.
Numbers 13:29: The Amalekites dwell in the land of the south: and the Hittites, and the Jebusites, and the Amorites, dwell in the mountains: and the Canaanites dwell by the sea, and by the coast of Jordan.