1 Samuel 12:21-25

And turn ye not aside: for then should ye go after vain things, which cannot profit nor deliver; for they are vain.

For the LORD will not forsake his people for his great name’s sake: because it hath pleased the LORD to make you his people.

Moreover as for me, God forbid that I should sin against the LORD in ceasing to pray for you: but I will teach you the good and the right way:

Only fear the LORD, and serve him in truth with all your heart: for consider how great things he hath done for you.

But if ye shall still do wickedly, ye shall be consumed, both ye and your king.