Contradiction with 1 Kings 8:27
It questions whether God would dwell on earth, while Genesis 18:33 shows Him interacting personally with Abraham.
1 Kings 8:27: But will God indeed dwell on the earth? behold, the heaven and heaven of heavens cannot contain thee; how much less this house that I have builded?
Contradiction with Exodus 33:20
States that no man can see God and live, whereas in Genesis 18:33, God appears to be directly interacting with Abraham.
Exodus 33:20: And he said, Thou canst not see my face: for there shall no man see me, and live.
Contradiction with John 1:18
Declares that no one has ever seen God, contrasting with Genesis 18:33 where God is seemingly visible and conversing.
John 1:18: No man hath seen God at any time; the only begotten Son, which is in the bosom of the Father, he hath declared [him].