Have you ever hurt someone, or have you ever insulted someone without knowing it? Have you ever offended a friend, or slighted a spouse? Of course you have. All of us have. And, when we find out what hurt or harm our actions have caused, we say, "I didn't understand. I didn't know." We are sorry. We regret it; but, it is too late. A revealing scar is left. It is like driving a nail into a piece of lumber. You make a mistake. That is not exactly where you wanted it. So, you take the claw-end of a hammer, and pull the nail out. The nail is gone; but the piece of wood is marred. A scar remains.

In our text this morning, Paul is preaching a sermon about some people who drove nails into two pieces of wood which formed a cross. On it they crucified the Son of God. Paul is preaching to the Jews. H…