1 Samuel 12:22-24

The LORD has made a solemn promise, and he will not abandon you, for he has decided to make you his own people. As for me, the LORD forbid that I should sin against him by no longer praying for you. Instead, I will teach you what is good and right for you to do. Obey the LORD and serve him faithfully with all your heart. Remember the great things he has done for you.