Where my bike got to?

A preacher was talking to his mentor, and mentioned that he believed he has a theif in his congregation. When asked why he thinks that, he responds, "Last week my bike came up missing and I know it has to be one of the members." His mentor told him "Here's what you do. Next Sunday, preach on the Ten Commandments and when you get to "Thou shalt not steal" really lay it on thick. They will feel so guilty they'll bring your bike back with no questions asked." The next week the mentor sees the young preacher riding his bike and shouts to him, "I see my advice worked." The young preacher responds, "Well, sort of. I preached on the Ten Commandments like you said to do, but when I got to "Thou shalt not commit adultery" I remembered where I left my bike."