You have heard that it was said, "You shall not commit adultery.''
But I say to you that every one who looks at a woman in order to lust after her has already committed adultery with her in his heart.
In Matthew 5 the Lord Jesus spoke about murder and adultery. Murder refers to our temper, and adultery, to our lust. Our temper and our lust constantly damage and trouble us. If we were stone, we would not be bothered by these two things. No matter how much you irritate, insult, or offend a stone, it will never react, because it does not have any temper. Furthermore, a stone has no lust. Thus, it can never be tempted by lust. But daily we are either troubled by our temper or tempted by our lust.
In order to live up to a moral standard higher than that of the old law, you must overcome your temper and your lusts. You may say that this is not easy to do. Right, it is not easy. This is why you need Christ. This is why you need another life. How we need to stay with Christ! We must contact Him not only day by day, but even hour by hour. Because of the temper and lust within us, we need to remain in constant fellowship with Him.