Revelation 5:2
And I saw a mighty angel announcing in a loud voice, "Who deserves to open the book and break its seals?"
Revelation 5:5
But one of the elders said to me, "Stop weeping! See! The Lion who sprang from the tribe of Judah, who belongs to the line of David, has conquered, so that He can open the book and break its seven seals."
Revelation 18:21
Then a mighty angel picked up a stone like a huge millstone and hurled it into the sea, saying: "With violence like this, Babylon the great city will be hurled to ruin, and it will never be found again.
Revelation 10:1
Then I saw another mighty angel coming down from heaven. He was clothed in a cloud, with a rainbow over his head; his face was like the sun, his legs were like pillars of fire,