Contradiction with Genesis 6:6
This verse states that God repented for making man, implying that God has regret, while 1 Samuel 15:34 is within a context asserting God does not repent.
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 Numbers 23:19
This verse explains that God is not a man that he should repent, contrary to the narrative context of regret seen in 1 Samuel 15:34.
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 Jeremiah 26:3
Here, God considers repenting of the evil against His people if they turn from their evil ways, contradicting the idea in 1 Samuel context that God does not change His mind.
Jeremiah 26:3: If so be they will hearken, and turn every man from his evil way, that I may repent me of the evil, which I purpose to do unto them because of the evil of their doings.
Contradiction with Ezekiel 24:14
It claims that God will not repent, contrasting with the implication of divine change of heart in broader contexts like 1 Samuel 15’s chapter narrative.
Ezekiel 24:14: I the LORD have spoken [it]: it shall come to pass, and I will do [it]; I will not go back, neither will I spare, neither will I repent; according to thy ways, and according to thy doings, shall they judge thee, saith the Lord GOD.
Contradiction with Jonah 3:10
God repented of the evil He had said He would do unto Nineveh, showing inconsistency with the claim in 1 Samuel about His unchanging nature.
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.