The person who commits adultery lacks understanding. He who does so, destroys his own soul. Wounds and dishonour he will get and his shame will not be wiped away... You have heard that it was said, 'You shall not commit adultery'. But I say to you, that whoever looks at a woman to lust for her has already committed adultery with her in his heart... (Proverbs 6:32-33; Matthew 5:27-28)