Revelation 1:2

“Who bore record of the word of God, etc.] Of the essential and eternal Word of God, his only begotten Son; as John the apostle did in his Gospel, and in his epistles, and also in this book; and which is a clear evidence of his being the writer of it. And of the testimony of Jesus Christ; that is, the Gospel, which testifies of the person of Christ, of the truth of his divinity, and reality of his human nature; of the union of the two natures, divine and human, his person: of his several offices, of prophet, priest and King; of what he did and suffered for his people; and of the blessings of grace which they receive by him: and of all things that he saw; with his bodily eyes, as the human…”

“bare record of--"testified the word of God" in this book. Where we would say "testifies," the ancients in epistolary communications use the past tense. The word of God constitutes his testimony; Rev 1:3, "the words of this prophecy." the testimony of Jesus--"the Spirit of prophecy" (Rev 19:10). and of all things that, &c.--The oldest manuscripts omit "and." Translate, "whatsoever things he saw," in apposition with "the word of God and the testimony of Jesus Christ."”

“Who bare record of the word of God - Who bore witness to, or testified of ἐμαρτύρησεν emarturēsen the Word of God. He regarded himself merely as a “witness” of what he had seen, and claimed only to make a fair and faithful “record” of it. “This is the disciple which “testifieth” (ὁ μαρτυρῶν ho marturōn) of these things, and wrote these things,” John 21:24. “And he that saw it bare record” - μεμαρτύρηκε memarturēke John 19:35. Compare also the following places, where the apostle uses the same word of himself: 1Jo 1:2; 1 John 4:14. The expression here, “the word of God,” is one the meaning of which has been much controverted, and is important in its bearing on the question who was the…”

“Who hath testified - In the following book. The word of God - Given directly by God. And the testimony of Jesus - Which he hath left us, as the faithful and true witness. Whatsoever things he saw - In such a manner as was a full confirmation of the divine original of this book. Revelation 1:3”

“1:2 reported (Greek martureō) . . . testimony (Greek marturia): These closely related Greek words indicate an authentic witness and emphasize that the sacrificial witness of Jesus and the authentic testimony of John are the basis for the revelation.”

“bare: Rev 1:9, Rev 6:9, Rev 12:11, Rev 12:17; Joh 1:32, Joh 12:17, Joh 19:35, Joh 21:24; Co1 1:6, Co1 2:1; Jo1 5:7-11; Jo3 1:12 and of all: Rev 1:19; Joh 3:11; Act 4:20, Act 22:15, Act 26:16; Jo1 1:1, Jo1 4:14 Revelation 1:3”