Matthew 5:27-29

27“You have heard that it was said to those of old, ‘You shall not commit adultery.’

28But I say to you that whoever looks at a woman to lust for her has already committed adultery with her in his heart.

29If your right eye causes you to sin, pluck it out and cast it from you; for it is more profitable for you that one of your members perish, than for your whole body to be cast into hell.