What triumphant emphasis is in that 'He'! Peter quotes Joel's word 'pour forth.' The prophet had said, as the mouthpiece of God, '_I_ will pour forth'; Peter unhesitatingly transfers the word to Jesus. We must not assume in him at this stage a fully-developed consciousness of our Lord's divine nature, but neither must we blink the tremendous assumption which he feels warranted in making, that the exaltation of Jesus to the right hand of God meant His exercising the power which belonged to God Himself. In verse 34, he stays for a moment to establish by prophecy that the Ascension, of which he had for the first time spoken in verse 33, is part of the prophetic characteristics of the Messiah. His demonstration runs parallel with his preceding one as to the Resurrection. He quotes Psalm cx., which he had learned to do from his Master, and just as he had argued about the prediction of Resurrection, that the dead Psalmist's words could not apply to himself, and must therefore apply to the Messiah; so he concludes that it was not 'David' who was called by Jehovah to sit as 'Lord' on His right hand. If not David, it could only be the Messiah who was thus invested with Lordship, and exalted as participator of the throne of the Most High. Then comes the final thrust of the spear, for which all the discourse has been preparing. The Apostle rises to the full height of his great commission, and sets the trumpet to his mouth, summoning 'all the house of Israel,' priests, rulers, and all the people, to acknowledge his Master. He proclaims his supreme dignity and Messiahship. He is the 'Lord' of whom the Psalmist sang, and the prophet declared that whoever called on His name should be saved; and He is the Christ for whom Israel looked. Last of all, he sets in sharp contrast what God had done with Jesus, and what Israel had done, and the barb of his arrow lies in the last words, 'whom ye crucified.' And this bold champion of Jesus, this undaunted arraigner of a nation's crimes, was the man who, a few weeks before, had quailed before a maid-servant's saucy tongue! What made the change? Will anything but the Resurrection and Pentecost account for the psychological transformation effected in him and the other Apostles?