1 Samuel 12:20-22

And Samuel said unto the people, Fear not: ye have indeed done all this evil; yet turn not aside from following Jehovah, but serve Jehovah with all your heart: and turn ye not aside; for then would ye go after vain things which cannot profit nor deliver, for they are vain. For Jehovah will not forsake his people for his great name’s sake, because it hath pleased Jehovah to make you a people unto himself.