"We know that in the symbolism of the book of Revelation this “angel” coming down from heaven is none other than our Lord Jesus Christ because of the marks that are given. I do not mean by this that Jesus is literally an “angel,” only that the angel in his symbolism stands for our Lord. The Lord Jesus is always pictured in the New Testament as “coming down from heaven,” and certainly He is the One who has “great power” or “great authority,” and who “lightens the earth with His glory.” Of Him it is written, “Worthy is the Lamb that was slain to receive power, and riches, and strength, and honor, and glory, and blessing” Rev. 5:12). And again, “And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory” (Mat. 24:30)."

"Without doubt this is the same “another angel” we met in Revelation 10:1-2. “And I saw another mighty angel come down from heaven, clothed in a cloud: and a rainbow was upon his head, and his face was as it were the sun, and his feet as pillars of fire: and he had in his hand a little book open: and he set his right foot upon the sea, and his left foot on the earth.” Some would make this the many-membered corporate Christ, but by the identifying characteristics it is clear that this is the glorious Head of the body, the indwelling spirit of Christ, the One who indeed fills the whole Christ body, yet remains uniquely the Head of all. He is clothed with a cloud and the rainbow is upon His head, just where it was when we saw Him before in this book. The only two places where we see it is here and in chapter four. Furthermore, He is clothed with a singular cloud, denoting the firstborn Son of God; for when Christ is seen coming in all His saints it is stated that “He cometh with clouds — plural — the many clouds of glory! Now, in the tenth chapter His face is like the sun, just as it was in the holy mount of Hermon, in His transfiguration. His feet are as pillars of fire, just as John saw them in chapter one in the midst of the seven churches. He has a scroll in His hand, opened. Who opened it? Why, He did, the Lamb did, over there in chapter five! And now in our text we find that this “another angel” likewise comes down from heaven with great authority and the earth is lightened with His glory — the glory of that same One whose face is as the sun! Who can deny that this is indeed THE LAMB, even Jesus."

"I would point out that in Greek grammar, when the word “another” is used with a noun before it, it is very significant. It signifies literally, “another who is the same,” and throughout the book of Revelation we find this word descriptive of our Lord. Remember, Jesus told His disciples that when He went away He would send them “another Comforter.” There we have the same grammatical structure in the Greek, indicating “another who is the same.” The Lord made it clear that this “another Comforter” was truly Himself in another form! “And I will pray the Father, and He shall give you another Comforter, that He may abide with you for ever; even the Spirit of truth; whom the world cannot receive, because it seeth Him not, neither knoweth Him: but ye know Him; for He dwelleth with you (as Jesus Christ in the flesh), and shall be in you (as Christ in the Spirit).” And then He adds with unmistakable clarity, “I will not leave you comfortless: I WILL COME UNTO YOU” (Jn. 14:16-18). Can we not see by this that the Comforter, or the Spirit of truth, was not another or different person, but another manifestation or form of the very same Christ who said “I am the Truth,” standing there before His disciples! He was “another Comforter,” oh yes, ANOTHER WHO IS THE SAME!"

Much more in the link:

https://www.godfire.net/eby/rev198.html