Matthew 28:20

“Teaching them to observe all things whatever I commanded you.”

Their mission is also to be one of teaching. They are now to fulfil their role as Scribes of the Kingly Rule of Heaven bringing forth what is new (what Jesus has brought) and what is old (the Scriptures) (Matthew 13:52). The Messianic movement into the world is not to be by warfare or force of arms. That is how false religions spread. It is to be by proclamation of the truth, by the sword of the word. Men must be won by truth and love, not be forced to respond at the point of the sword of men. Only the former can produce true men of God. The latter produces religious robots, and even terrorists. And they must be taught to observe all that Jesus has commanded them, especially as revealed in Matthew's Gospel. Just as Jesus taught these men as His disciples (Matthew 5:1), so must they teach those who become disciples of Jesus through them. The Sermon on the Mount is thus an essential part of the Good News as they go out to bring men to submit to Him, not only that they might be blessed (Matthew 5:3), but also that they might call Him ‘Lord, Lord', and do what He says (Matthew 7:13). For their constant prayer is to be, ‘May your Kingly Rule come, and your will be done, on earth as it is in Heaven' (Matthew 6:10). From now on men are to seek first the Kingly Rule of God and His saving righteousness (Matthew 6:33). For Kingly Rule belongs to the Lord, and He rules over the nations (Psalms 22:28).

‘All that I have commanded you.' This applies to this day as well as His day. It is all-inclusive. Anyone whose teaching excludes obedience to all the commands that Jesus Himself taught is clearly on the wrong track.