Bede the Venerable
Catena Aurea · Lukasevangelium 2
And suddenly there was with the angel a multitude of the heavenly host praising God, and saying, Glory to God in the highest, and on earth peace, good will toward men.
Lest the authority of a single Angel should appear small, as soon as one had revealed the sacrament of the new birth, straightway there was present a multitude of the heavenly host. Rightly has the attending Chorus of Angels received the name of heavenly host, seeing they both humbly bring their aid to that Leader mighty in battle, Who has appeared to put down the powers of the air, and also themselves by their celestial arms bravely vanquish those opposing powers lest they should prevail as they wish in tempting men. But because He is both God and man, rightly do they sing Peace to men and Glory to God. As it follows, Praising God and saying, Glory to God in the highest. As soon as one Angel, one messenger, had brought the good tidings that God was born in the flesh, the multitude of the heavenly host broke forth in the praise of the Creator, in order both to fix. their devotion on Christ, and to instruct us by their example, that as often as any of the brethren shall sound forth the word of sacred learning, or we ourselves shall have brought these holy things home to our minds, we should with our whole heart, our mouths and hands, return praise to God.