Hebrews 1:6
And again, when God brought the First-born into the world, he said-- 'Let all the angels of God bow down before him.'
1 Peter 1:12
And it was revealed to them that it was not for themselves, but for you, that they were acting as Ministers of the truths which have now been told to you, by those who, with the help of the Holy Spirit sent from Heaven, have brought you the Good News--truths into which even angels long to look.
Revelation 5:11-14
Then, in my vision, I heard the voices of many angels round the throne, and of the Creatures, and of the Councillors. In number they were 'ten thousand times ten thousand and thousands of thousands,'
Revelation 14:8-10
Then a second angel followed, crying-- 'She has fallen! She has fallen--Babylon the Great, who has made all the nations drink the maddening wine of her licentiousness!'