Revelation 19:1  “…a loud voice of a great multitude in heaven…”
For the last two announcements, John has been approached by or heard a single voice.  Now he hears a great multitude.  All is done and all of Heaven rejoices.

7-8  “…the marriage of the Lamb has come, and His wife has made herself ready…arrayed in fine linen, clean and bright, for the fine linen is the righteous acts of the saints”
The bride of Christ, those who are saved by Him, who have accepted His gift of salvation from the beginning of time.  Old Testament saints looked forward and trusted that He would come.  New Testament saints look back and see what He did and trust in Him.  All now belong to Him and are gathered together at last.

9-10  “Then he said to me…I am your fellow servant, and of your brethren who have the testimony of Jesus”
Not told exactly who this one is who is speaking.  Assuming it is the one who has spoken to John at different times throughout the experience.  I find it interesting that he says he is of your brethren who have the testimony of Jesus.  An angel would be a fellow servant, but not of the brethren of Jesus.  Or is he saying he is a fellow servant like the brethren who have the testimony of Jesus.  My point is that depending on the interpretation of that statement, the person speaking could be an angel or another redeemed human.  Last person to speak to John directly was one of the seven angels who had the bowls in chapter 17.  Could still be him or someone else.  Not really relevant, but an interesting note.  From what else he says, sounds like he is a heavenly being who is proclaiming the testimony of Jesus just as John and the other prophets have done.

10  “…the testimony of Jesus is the spirit of prophecy”
Jesus is the sum of all prophecy.  All of scripture points to Him.  Brethren who have the testimony would be the prophets.

11  “…Faithful and True…”
Reference to Jesus.

12  “…a name written that no one knew except Himself”
Not sure about this.  Different ideas, all good, but nothing specific.  Perhaps now that all has been placed under His feet, He has a new name which He will share with the bride.

13  “…clothed with a robe dipped in blood…”
Again, different ideas.  Items were purified by being dipped in blood or having blood sprinkled on them.  He would need no purifying for Himself.  Perhaps this signifies how His own blood was used to purify us.

13  “…His name is called The Word of God”
Another reference to Jesus.

15  “…He Himself will rule them with a rod of iron…”
Christ will rule on earth Himself.  Nothing will get past Him.  No injustice will go uncorrected.

19  “…I saw the beast, the kings of the earth, and their armies, gathered together to make war against Him who sat on the horse and against His army”
The last gathering before the Millennial reign.  The rulers of the earth with their armies along with the Antichrist.

20  “…the beast…the false prophet…These two were cast alive into the lake of fire burning with brimstone”
The Antichrist and his other beast/false prophet are captured and cast into the lake of fire.  End of game for them.  Satan is handled in the next chapter.

21  “…rest were killed with the sword which proceeded from the mouth of Him who sat on the horse…”
Jesus doesn’t need an actual sword.  His power comes through His spoken word.  He will merely speak the words and the battle will be over.  As He did on the cross with It is finished.

I hope you enjoy reading and studying His word.  May it accomplish what He desires.  Please feel free to comment or post questions.  Thanks for reading!

Scripture taken from the New King James Version®. Copyright © 1982 by Thomas Nelson. Used by permission. All rights reserved.