Is There A Third Person Reference in Revelation 22:6? (William Milligan)

The person introduced with the words He said unto me is not indeed named, but there can be little doubt that he is the angel spoken of in the Prologue as sent to "signify" the revelation that was to follow.[586] Again, when the Seer is overwhelmed with what he has seen, and may be said to have almost feared that it was too wonderful for belief, the angel assures him that it was all faithful and true. A similar declaration had been made at chap. xix. 9 by the voice which there "came forth from the throne,"[587] and likewise at chap. xxi. 5 by Him "that sitteth on the throne." The angel therefore who now speaks, like the angel of the Prologue, has the authority of this Divine Being for what he says. It is true that in the following words, which seem to come from the same speaker, the angel must thus be understood to refer to himself in the third person, and not, as we might have expected, in the first,—The Lord sent His angel, not The Lord sent me. But, to say nothing of the fact that such a method of address is met with in the prophetic style of the Old Testament, it appears to be characteristic of St. John in other passages of his writings. More particularly we mark it in the narrative in the fourth Gospel of the death of Jesus on the Cross: "And he that hath seen hath borne witness, and his witness is true: and he knoweth that he saith true, that ye may believe."[588]

Milligan, William. The Expositor's Bible: The Book of Revelation (Kindle Locations 4947-4958). Kindle Edition.