1 Samuel 12:21 KJV
And turn ye not aside: for then should ye go after vain things, which cannot profit nor deliver; for they are vain.
1 Samuel 12:21, King James Version
In context
20 And Samuel said unto the people, Fear not: ye have done all this wickedness: yet turn not aside from following the Lord, but serve the Lord with all your heart;
21 And turn ye not aside: for then should ye go after vain things, which cannot profit nor deliver; for they are vain.
22 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.