Revelation 5:2
And I saw a mighty angel who was exclaiming in a loud voice, "Who is worthy to open the book and break its seals?"
Revelation 5:5
one of the Elders said to me, "Do not weep. The Lion which belongs to the tribe of Judah, the Root of David, has triumphed, and will open the book and break its seven seals."
Revelation 18:21
Then a single angel of great strength took a stone which resembled a huge millstone, and hurled it into the sea, saying, "So shall Babylon, that great city, be violently hurled down and never again be found.
Revelation 10:1
Then I saw another strong angel coming down from Heaven. He was robed in a cloud, and over his head was the rainbow. His face was like the sun, and his feet resembled pillars of fire.