Hebrews 1:6
And again, when he introduces the first-begotten into the world, he saith, "Let all the angels of God also worship him."
1 Peter 1:12
To whom it was revealed, that not for themselves, but for us were their ministrations employed in the things which are now declared unto you by those who have preached the gospel unto you by the Holy Ghost sent down from heaven; on which things the angels bending forwards eagerly desire to gaze.
Revelation 5:11-14
And I looked, and heard the voice of many angels around the throne, and the living beings, and the presbyters, and their number was myriads of myriads and thousands of thousands,
Revelation 14:8-10
And another angel followed, saying, Babylon is fallen, is fallen, that great city, because all nations have been made to drink of the wine of the wrath of her whoredom.