Revelation 5:2
I saw a mighty angel proclaiming with a loud voice, "Who is worthy to open the scroll, 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, "Do not weep. Behold, the Lion who is of the tribe of Judah, the Root of David, has overcome so that he can open the scroll 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 the LORD, 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 another 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.