Who bare record of the word of God, and of the testimony of Jesus Christ, and of all things that he saw.
Who bore record of the word of God,.... 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 body of Christ, the miracles he wrought in it, the transfiguration of it on the mount, the crucifixion of it, and the piercing of it with a spear, and the resurrection of it from the dead; and also the visions recorded in this book; and such a faithful witness serves greatly to confirm the authority of this book, and to recommend the perusal of it. The Complutensian edition and the Arabic version read, "which are, and which shall", or "must be hereafter", as in Revelation 1:19.