He which testifieth these things - The Lord Jesus; for he it was that had, through the instrumentality of the angel, borne this solemn witness to the truth of these things, and this book was to be regarded as his revelation to mankind. See the notes on Revelation 1:1; Revelation 22:16. He here speaks of himself, and vouches for the truth and reality of these things by saying that he “testifies” of them, or bears witness to them. Compare John 18:37. The fact that Jesus himself vouches for the truth of what is here revealed, shows the propriety of what John had said in the previous verses about adding to it, or taking from it.
Saith, Surely I come quickly - That is, the development of these events will soon begin - though their consummation may extend into far distant ages, or into eternity. See the notes on Revelation 1:1, Revelation 1:3; Revelation 22:7, Revelation 22:10.
Amen - A word of solemn affirmation or assent. See the notes on Matthew 6:13. Here it is to be regarded as the expression of John, signifying his solemn and cheerful assent to what the Saviour had said, that he would come quickly. It is the utterance of a strong desire that it might be so. He longed for his appearing.
Even so - These, too, are the words of John, and are a response to what the Saviour had just said. In the original, it is a response in the same language which the Saviour had used, and the beauty of the passage is marred by the translation “Even so.” The original is, “He which testifieth to these things saith, Yea - ναὶ nai - I come quickly. Amen. Yea - ναὶ nai - come, Lord Jesus.” It is the utterance of desire in the precise language which the Saviour had used - heart responding to heart.
Come, Lord Jesus - That is, as here intended, “Come in the manner and for the objects referred to in this book.” The language, however, is expressive of the feeling of piety in a more extended sense, and may be used to denote a desire that the Lord Jesus would come in any and every manner; that he would come to impart to us the tokens of his presence; that he would come to bless his truth and to revive his work in the churches; that he would come to convert sinners, and to build up his people in holiness; that he would come to sustain us in affliction, and to defend us in temptation; that he would come to put a period to idolatry, superstition, and error, and to extend the knowledge of his truth in the world; that he would come to set up his kingdom on the earth, and to rule in the hearts of people; that he would come to receive us to his presence, and to gather his redeemed people into his everlasting kingdom. It was appropriate to the aged John, suffering exile in a lonely island, to pray that the Lord Jesus would speedily come to take him to himself; and there could have been no more suitable close of this marvelous book than the utterance of such a desire. And it is appropriate for us as we finish its contemplation, disclosing so much of the glories of the heavenly world, and the blessedness of the redeemed in their final state, when we think of the earth, with its sorrows, trials, and cares, to respond to the prayer, and to say, “Come, Lord Jesus, come quickly.” For that glorious coming of the Son of God, when he shall gather his redeemed people to himself, may all who read these notes be finally prepared. Amen.