"You have heard that it was said to those of old, "You shall not commit adultery.'
Matthew 5:27
Surrounding context
5:26 Assuredly, I say to you, you will by no means get out of there till you have paid the last penny.
5:27 "You have heard that it was said to those of old, "You shall not commit adultery.'
5:28 But I say to you that whoever looks at a woman to lust for her has already committed adultery with her in his heart.