Romans 14:23

Amplified Bible, Classic Edition

²³ But the man who has doubts (misgivings, an uneasy conscience) about eating, and then eats [perhaps because of you], stands condemned [before God], because he is not true to his convictions and he does not act from faith. For whatever does not originate and proceed from faith is sin [whatever is done without a conviction of its approval by God is sinful].