Murphy showed up at Mass one Sunday, and the priest almost fell down in shock when he saw him.
After Mass, the priest caught up with him and said, "Murphy, I am so glad ya decided to attend Mass. What made ya come?"
Murphy said, "I gotta be honest with you, Father. A while back, I misplaced me hat and I really love that hat. I know that McGlynn had one just like it, and I knew he came to church every Sunday. I also knew that he had to take his hat off during Mass, and I figured he would leave it on a hook at the back of the church. So, I was going to leave after Communion and steal McGlynn's hat."
Later, the priest said, "Well, Murphy, I notice that ya didn't steal McGlynn's hat. What changed your mind?"
Murphy replied, "Well, after I heard your sermon on the 10 Commandments, I decided that I didn't need to steal McGlynn's hat after all."
With a tear in his eye the priest said, "So, after I talked about 'Thou Shalt Not Steal', ya decided you would rather do without your hat than burn in hell?"
Murphy shook his head. "No, Father, after ya talked about 'Thou Shalt Not Commit Adultery', I remembered where I left me hat."