From Norman Geisler’s Creating God in the Image of Man (p 87):
Proponents of the new theism assert that “God repents in a variety of circumstances.”… However this allegation overlooks several important things. For one thing Genesis 6:6 does not use the same Hebrew word for “repent” as does 1 Samuel 15:29. Samuel uses shaqar, which means that God will not cheat, lie, deceive, break a convent, act falsely, or be untrue. But the Hebrew word nacham used in Genesis 6:6 is translated “sorry”.
Calvinism is based on lies. It is no wonder Geisler would publish a boldface lie in his text against Open Theism. The word nacham is used for repent in 1 Sa 15:29. Maybe Geisler was not counting on free Bible software accessible to everyone, instantly, when he first penned the lie. Here is the verse:
1Sa 15:29 And also the Strength of Israel will not lie (shaqar) nor repent (nacham): for he is not a man, that he should repent (nacham).
Of course Calvinists have a hard time with this verse. They want to claim it is a universal truth: that God never repents ever. But the Open Theists point out that Calvinists take this verse woefully out of context. Not only is the same word used in Genesis 6:6 (“ And it repented (nacham) the LORD that he had made man on the earth”), but 1 Sam 15:29 is literally sandwiched between two verses saying God repents:
1Sa 15:11 It repenteth me that I have set up Saul to be king: for he is turned back from following me, and hath not performed my commandments. And it grieved Samuel; and he cried unto the LORD all night.
1Sa 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.
So why would God (through Samuel) say he is not a man that he would repent and then place this literally between verses saying he repents? The answer is that this is about God’s relationship with Saul. After God is betrayed by Saul, he decides he is through with Saul. He repents of making Saul king. He casts Saul out of his favor and says he is not a man that he would take Saul back. It is human to be persuaded to allow abuseful and disappointing individuals back into favor. An abused wife might invite her abusive husband back home. God is rejecting this. He confirms he is through with Saul. He repents of making Saul king. And then doubles down saying he will not repent of taking away Saul’s kingship.
These verses show God’s personal interaction, his hurt, and his nature. It is no wonder the Calvinist lie about these verses.