Revelation 5:2
I saw a mighty angel proclaiming with a loud voice, "Who is worthy to open the book, and to break its seals?"
Isaiah 41:22-23
"Let them announce, and declare to us what shall happen. Declare the former things, what they are, that we may consider them, and know the latter end of them; or show us things to come.
Revelation 5:5
One of the elders said to me, "Don't weep. Behold, the Lion who is of the tribe of Judah, the Root of David, has overcome; he who opens the book and its seven seals."
Revelation 18:21
A mighty angel took up a stone like a great millstone and cast it into the sea, saying, "Thus with violence will Babylon, the great city, be thrown down, and will be found no more at all.
Psalm 103:20
Praise Yahweh, you angels of his, who are mighty in strength, who fulfill his word, obeying the voice of his word.
Isaiah 29:11-12
All vision has become to you like the words of a book that is sealed, which men deliver to one who is educated, saying, "Read this, please;" and he says, "I can't, for it is sealed:"
Revelation 10:1
I saw a mighty angel coming down out of the sky, clothed with a cloud. A rainbow was on his head. His face was like the sun, and his feet like pillars of fire.