Q. Is masturbation a sin? I’ve looked through the Bible and can’t find anything mentioned about it one way or the other.
A. Masturbation is not specifically mentioned as being a sin, but looking upon someone with lust in one’s heart is equated with adultery and is a sin (Matt. 5:28). Therefore I would say that if someone uses a mental or physical image of someone as a stimulus in the act of masturbation, that person is committing adultery in his or her heart and is sinning. Where sin is concerned, the intention of our heart is just as important as our actual behavior.