Does God change his mind?
There are several occasions where the King James version of the Bible says that God repented. In the NIV the word repented is avoided because God is unchanging in his purpose and intent, has complete foreknowledge and is not taken by surprise.
"He who is the Glory of Israel does not lie or change his mind; for he is not a man, that he should change his mind." I Sam 15:29
If you ever think that you are not good enough, that you need to try harder, that you have forfeited your salvation through lack of effort, do not despair. It is His purpose to bring believers into the full enjoyment of their promised inheritance. It is not His purpose for us to be constantly worrying about the future.
"Because God wanted to make the unchanging nature of his purpose very clear to the heirs of what was promised, he confirmed it with an oath. God did this so that, by two unchangeable things in which it is impossible for God to lie, we who have fled to take hold of the hope offered to us may be greatly encouraged. We have this hope as an anchor for the soul, firm and secure." Hebrews 6:17-19.