Revelation 5:2
And I saw a strong angel proclaiming with a loud voice, Who is worthy to open the book, and to loose its seals?
Revelation 5:5
And one of the elders saith to me, Weep not; behold, the Lion that is of the tribe of Judah, the shoot from David, conquered, he that openeth the book, and its seven seals.
Revelation 18:21
And a strong angel took up a stone like a great millstone, and cast it into the sea, saying, Thus with violence shall Babylon the great city be thrown down, and shall never more be found.
Revelation 10:1
And I saw another strong angel coming down from heaven, clothed with a cloud, and a rainbow was upon his head, and his face was like the sun, and his feet as pillars of fire.