2 And I saw a strong angel proclaiming with a loud voice, Who is worthy to open the book, and to loose the seals of it?
Revelation 5:2 Cross References - KJC
Revelation 5:5
5 And one of the elders says unto me, Weep not: behold, the Lion of the tribe of Juda, the Root of David, has prevailed to open the book, and to loose the seven seals of it.
Revelation 10:1
1 And I saw another mighty angel come down from heaven, clothed with 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:
Revelation 18:21
21 And a mighty angel took up a stone like a great millstone, and cast it into the sea, saying, Thus with violence shall that great city Babylon be thrown down, and shall be found no more at all.