Luke 2:13

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.

Of old, indeed, Angels were sent to punish, as, for instance to the Israelites, to David, to the men of Sodom, to the valley of weeping. Now on the other hand they sing the song of thanksgiving to God: because He has revealed to them His coming down to men.

At the same time they also give praises because their voices of gladness accord well with our redemption, and while they behold our acceptance, they rejoice also that their number is completed.

They wish also peace to men, as they add, On earth peace to men, because those whom they had before despised as weak and abject, now that our Lord has come in the flesh they esteem as friends.

This peace has been made through Christ, for He has reconciled us by Himself to God and our Father, having taken away our guilt, which was the ground of offense also. He has united two nations in one man, and has joined the heavenly and the earthly in one flock.

For whom they ask peace is explained in the words, Of good will. For them, namely, who receive the new born Christ. For there is no peace to the ungodly, but much peace to them that love the name of God.

But the attentive reader will ask, How then does the Savior say, I came not to send peace on the earth, whereas now the Angels’ song of His birth is, On earth peace to men? It is answered, that peace is said to be to men of goodwill. For the peace which the Lord does not give on the earth is not the peace of good will.

For righteousness belongs to good will.

Behold the wonderful fill working of God. He first brings Angels down to men, and then brings men up to heaven. The heaven became earth, when it was about to receive earthly things.

But in a mystery, the Angels saw that they could not accomplish the work committed to them without Him Who was truly able to save, and that their healing fell short of what the care of men required. And so it was as if there should come one who had great knowledge in medicine, and those who before were unable to heal, acknowledging now the hand of a master, grudge not to see the corruptions of wounds ceasing, but break forth into the praises of the Physician, and of that God who sent to them and to the sick a man of such knowledge; the multitudes of the Angels praised God for the coming of Christ.

Clearly enough is the nativity announced by Gabriel. But what has he to do with the Creator’s angel? The conception in the virgin’s womb is also set plainly before us. But what concern has he with the Creator’s prophet, Isaiah? He will not brook delay, since suddenly (without any prophetic announcement) did he bring down Christ from heaven. “Away,” says he, “with that eternal plaguey taxing of Cæsar, and the scanty inn, and the squalid swaddling-clothes, and the hard stable. We do not care a jot for that multitude of the heavenly host which praised their Lord at night. Let the shepherds take better care of their flock, and let the wise men spare their legs so long a journey; let them keep their gold to themselves. Let Herod, too, mend his manners, so that Jeremy may not glory over him. …

There enters then these lower parts of the world the Son of God , descending from His heavenly home and yet not quitting His Father’s glory, begotten in a new order by a new nativity. In a new order, because being invisible in His own nature, He became visible in ours, and He whom nothing could contain was content to be contained: abiding before all time He began to be in time: the Lord of all things, He obscured His immeasurable majesty and took on Him the form of a servant: being God that cannot suffer, He did not disdain to be man that can, and, immortal as He is, to subject Himself to the laws of death. The Lord assumed His mother’s nature without her faultiness: nor in the Lord Jesus Christ, born of the Virgin’s womb, does the wonderfulness of His birth make His nature unlike ours. …