I find myself still in the Book of Matthew and rereading the Sermon on the Mount found in chapters 5-7. There is just so much there for someone to chew on and try to understand. From the simplest explanation of it that I can give it's Jesus taking the Ten Commandments; not recommendations, and explaining and expounding on them for the listener then and now. Some of them are just so straight forward people just miss what He is saying especially in today's world. In Matthew 7:15-20 Jesus is using a simile to explain how you and I can know people for who they really are. It's really straight forward.