Consideration #01) We are talking about Jesus
Initially, it is important to realize that the author of Revelation clearly claimed that the same Jesus Christ of the Gospels was also his tome’s “wrathful redeemer”. Indeed, the very first words of Revelation’s very first verse identify it to be “The revelation of Jesus Christ”, even though the last words of that same verse admit that Revelation was not transmitted directly by Jesus himself, but rather were offered by proxy via “his angel”, a messenger who seemed to see Jesus in an entirely new way …
Later, after quoting Daniel 7:10’s praising of the Messianic “Lamb” (see Revelation 5:11), Revelation’s author has that same “Lamb” opening the infamous seven seals (see Revelation 6:1-17 + 8:1-2). And once we remember that the Gospel of John had already clearly identified Jesus as “the Lamb of God” (see John 1:29), it once again becomes obvious that Revelation’s author clearly claims the same man to be his protagonist as well.
Finally, as if there was any doubt remaining, Jesus is directly mentioned as Revelation’s primary source near the end of its final chapter …
“It is I, Jesus, who sent my angel to you with this testimony for the churches.” ~ Revelation 22:16