Proverbs 24:28 KJV
Be not a witness against thy neighbour without cause; and deceive not with thy lips.
Proverbs 24:28, King James Version
In context
27 Prepare thy work without, and make it fit for thyself in the field; and afterwards build thine house.
28 Be not a witness against thy neighbour without cause; and deceive not with thy lips.
29 Say not, I will do so to him as he hath done to me: I will render to the man according to his work.