Romans 14:23 in the World English Bible
But he who doubts is condemned if he eats, because it isn’t of faith; and whatever is not of faith is sin.
Context
22 Hast thou faith? have it to thyself before God. Happy is he that condemneth not himself in that thing which he alloweth.
23 And he that doubteth is damned if he eat, because he eateth not of faith: for whatsoever is not of faith is sin.