Jesus begins to clarify what righteousness greater than the Pharisees looks like. The first issue he deals with is "Thou Shalt Not Kill." The Pharisees had a narrow understanding of the command that it it forbade physical murder. Jesus gives the intent of the law. The believer is to stop murder from coming out of the heart and being found in our speech. In fact, the Lord challenges believers as peacemakers to proactively meet warring situations and try to get them to cease before more harm occurs.