Such An Easy Command of Jesus, But No one Want To Do It!

If you claim to be a christian, then there is a good chance that you probably have never heard of this teaching of Jesus. The next obvious question is why don't the churches teach this commandment of Jesus, considering that this command is the easiest? Was Jesus trying to question our need for respectability and what others think of us? What is more important, what others think of us or what God thinks of us?