1 Samuel 12:24 in the World English Bible
Only fear the LORD, and serve him in truth with all your heart; for consider what great things he has done for you.
Context
23 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:
24 Only fear the LORD, and serve him in truth with all your heart: for consider how great things he hath done for you.
25 But if ye shall still do wickedly, ye shall be consumed, both ye and your king.