1 Samuel 12:21 in the King James Version
And turn ye not aside: for then should ye go after vain things, which cannot profit nor deliver; for they are vain.
Context
20 Samuel said to the people, “Don’t be afraid. You have indeed done all this evil; yet don’t turn away from following the LORD, but serve the LORD with all your heart.
21 Don’t turn away to go after vain things which can’t profit or deliver, for they are vain.
22 For the LORD will not forsake his people for his great name’s sake, because it has pleased the LORD to make you a people for himself.