Hebrews 1:6
And again, when God brings the first-born into the world, he says, "Let all God's angels worship him."
1 Peter 1:12
It was revealed to them that they were not serving themselves, but you, in these things which now have been announced to you through those who preached the gospel to you by the Holy Spirit sent from heaventhings into which angels long to look.
Revelation 5:11-14
Then I looked, and I heard the voice of many angels around the throne and the living creatures and the elders, numbering myriads of myriads and thousands of thousands,
Revelation 14:8-10
And another angel, a second, followed, saying, "Fallen, fallen is Babylon the great, she who made all the nations drink the wine of her impure passion."