2 And I saw a strong angel proclaiming in a loud voice, “Who is worthy to open the scroll, and to break its seals?”
Revelation 5:2 Cross References - BLB
Revelation 5:5
5 And one of the elders says to me, “Do not weep. Behold, the Lion of the tribe of Judah, the root of David, has overcome to open the scroll and its seven seals.”
Revelation 10:1
1 And I saw another mighty angel coming down out of heaven, clothed with a cloud, and a rainbow upon his head, and his face was like the sun, and his feet like pillars of fire,
Revelation 18:21
21 And one mighty angel took up a stone like a great millstone and cast it into the sea, saying: “Thus Babylon will be cast down with violence, the great city, and shall never be found any longer.