Contradiction with Proverbs 21:2
Genesis 18:29 implies negotiation with God, suggesting flexibility; Proverbs 21:2 emphasizes that the Lord weighs the heart, implying a fixed divine judgment beyond negotiation.
Proverbs 21:2: Every way of a man [is] right in his own eyes: but the LORD pondereth the hearts.
Contradiction with James 1:17
Genesis 18:29 demonstrates a changeable God responding to human pleas; James 1:17 describes God as unchanging.
James 1:17: Every good gift and every perfect gift is from above, and cometh down from the Father of lights, with whom is no variableness, neither shadow of turning.
Contradiction with Numbers 23:19
Genesis 18:29 shows God reevaluating His decision upon Abraham's request; Numbers 23:19 states that God does not change His mind or lie like humans.
Numbers 23:19: God [is] not a man, that he should lie; neither the son of man, that he should repent: hath he said, and shall he not do [it]? or hath he spoken, and shall he not make it good?
Contradiction with Isaiah 55:8-9
Genesis 18:29 depicts God engaging in human reasoning through Abraham; Isaiah 55:8-9 affirms God's ways and thoughts are higher than human logic.
Isaiah 55:8-9: For my thoughts [are] not your thoughts, neither [are] your ways my ways, saith the LORD.