Contradiction with Genesis 6:6
This verse suggests that God regretted making humanity, implying limitations to His plans.
Genesis 6:6: And it repented the LORD that he had made man on the earth, and it grieved him at his heart.
Contradiction with 1 Samuel 15:35
God repented making Saul king, suggesting a change in His intentions.
1 Samuel 15:35: And Samuel came no more to see Saul until the day of his death: nevertheless Samuel mourned for Saul: and the LORD repented that he had made Saul king over Israel.
Contradiction with Jeremiah 18:8
Implies that God changes His mind about intended judgement based on human actions, contradicting total sovereignty.
Jeremiah 18:8: If that nation, against whom I have pronounced, turn from their evil, I will repent of the evil that I thought to do unto them.
Contradiction with Jonah 3:10
God repenting from the judgment He planned on Nineveh suggests changes in His purpose.
Jonah 3:10: And God saw their works, that they turned from their evil way; and God repented of the evil, that he had said that he would do unto them; and he did [it] not.