Matthew 5:27-30

Second illustration, taken from the seventh commandment. A grand moral law, in brief lapidary style guarding the married relation and the sanctity of home. Of course the Hebrew legislator condemned lust after another man's wife; it is expressly prohibited in the tenth commandment. But in practical working as a public law the statute laid main stress on the outward act, and it was the tendency of the scribes to give exclusive prominence to this. Therefore Christ brings to the front what both Moses and the scribes left in the background, the inward desire of which adultery is the fruit