In this section of the Sermon on the Mount, Jesus begins His series of six authoritative expansions of the Law. He starts with the commandment, “You shall not murder.” While the Law addressed the outward act, Jesus exposes the deeper issue: the heart. Anger, contempt, and demeaning speech are revealed as the seeds of murder—evidence that sin begins long before any physical action. Jesus teaches that such internal hostility places a person under divine judgment just as surely as the outward act itself.