After his resurrection from the dead Jesus said to his disciples, “All authority hath been given unto me in heaven and on earth,” to show them that he had the right and authority to speak the words that come next: “Go ye, therefore, and make disciples of all the nations, baptizing them into the name of the Father and of the Son and of the Holy Spirit: teaching them to observe all things whatsoever I commanded you: and lo, I am with you always, even unto the end of the world” (Matt. 28:19, 20). They were not to go yet, for he had sealed their lips. On the day of his ascension to heaven he said unto them: “Go ye into all the world, and preach the gospel to the whole creation. He that believeth and is baptized shall be saved; but he that disbelieveth shall be condemned” (Mark 16:15, 16); “but tarry ye in the city, until ye be clothed with power from on high” (Luke 24:49). So they returned to Jerusalem and waited for the coming of the Spirit who was to unseal their lips and to speak to the world in the name of Jesus. The day of Pentecost came, they were in the temple, when suddenly a sound from heaven filled the house where they were sitting, and they felt themselves moved inwardly by a new power, under which they began to speak to the multitude in the temple, addressing them in all the different languages represented by the nations there assembled. The time had come when they can tell to the world all they know about Jesus fully and freely. And when they had praised God, to the amazement of the people, in all their tongues, Peter arose, now having the keys to the kingdom in his hands, now ready to execute his high commission to open the gates and admit those who were entitled to enter, and for the first time in his life begins to inform men who Jesus is. He delivers a discourse in which he says: “Ye men of Israel, hear these words: Jesus of Nazareth, a man approved of God unto you by mighty works and wonders and signs which God did by him in the midst of you, even as ye yourselves know; him, being delivered by the determinate counsel and foreknowledge of God, ye by the hands of lawless men did crucify and slay: whom God raised up, having loosed the pangs of death.” He quotes language of the prophets to prove this. He then presents the testimony of himself and his fellow apostles to the effect that Jesus had been raised from the dead, and that they had seen him with their eyes and handled him with their hands. He further states that God had said to Jesus: “Sit thou on my right hand, till I make thine enemies the footstool of thy feet,” and closes this powerful argument with this soul-stirring appeal: “Let all the house of Israel therefore know assuredly that God hath made him both Lord and Christ, this Jesus whom ye crucified.”