10 Now the word of the Lord came to Samuel, saying, 11 “I greatly regret that I have set up Saul as king, for he has turned back from following Me, and has not performed My commandments.” And it grieved Samuel, and he cried out to the Lord all night. (1 Sam 15:10-11)
What is meant here when God says that He regretted making Saul king? Some infer that in light of this verse and others like it that God doesn’t know the future. According to them God wanted the best for Saul and He did all He could to set him up for success without knowing what choices Saul would or wouldn’t make in the future. To the open theist, Saul’s disobedience caused God regret because if He only knew the choices that Saul was going to make He wouldn’t have made Saul king. The result being – God, then, regretted His own lack of foresight.