Matthew 5:27-29

27“You have heard the commandment that says, ‘You must not commit adultery.’

28But I say, anyone who even looks at a woman with lust has already committed adultery with her in his heart.

29So if your eye—even your good eye—causes you to lust, gouge it out and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell.