Mt. 28:16-20; Mk. 16:15-18
When Jesus made His eighth appearance after His resurrection, He met with the eleven apostles on a mountain in Galilee. There were others present and some of them were not convinced that He had actually risen from the dead.
Even though others were present, Jesus delivered His message (The Great Commission) to the apostles only. He said, “All authority has been given to Me in heaven and on earth. Go therefore and make disciples of all the nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all things that I have commanded you; and lo, I am with you always, even to the end of the age.”
The apostles were promised the ability to cast out demons and to perform other signs and miracles. These abilities were given to them to show that they were indeed speaking for God. The only persons recorded doing these signs were the apostles and those to whom they had passed this power.
In order to assure that the gospel would continue to be preached, Jesus instructed the apostles to teach the new disciples to observe all of the things that He had taught them. This would make a perpetual discipleship until the end of the age.
Jesus did not specify the method of reaching all nations, but there are numerous ways to accomplish this mission. Some can leave home and go into a mission field. Others can help support those who do go away. Preaching and teaching Bible classes are ways to “go” in a local sense. There are some individuals who are able to write aids for studying the Scriptures. Almost everyone can contact his neighbors either in person, by telephone or by mail. Facebook, email and other social media are excellent methods also.