All the words of this book, particularly the things of the last vision, are such as proceed from him who is the faithful witness, Revelation 1:5, Revelation 3:14; from him who was called faithful, Revelation 19:11; and which God will show himself true and faithful in bringing to pass: and such things as God hath revealed to his prophets under the Old Testament in part, and now to me his prophet, to show to his people the things that shall come to pass, and shall shortly begin to be accomplished: See Poole on "Revelation 1:1".
Related Commentaries of Revelation 22:6
Revelation 22:6
6 And he said unto me, These sayings are faithful and true: and the Lord God of the holy prophets sent his angel to shew unto his servants the things which must shortly be done.