The problem was, you couldn't have one without the other. There couldn't be a bad guy unless there was a good guy to create the standard. And there couldn't be a good guy until a bad guy showed just how far off the path he might stray.
If God is not with us, we do not want to continue. If the Sermon on the Mount is simply impractical, our mission work is hopeless. We have no backup plan. We have nothing but Him.