Luke 2:6

The Lord is born on earth, and he does not have even a cell in which to be born, for there was no room for him in the inn. The entire human race had a place, and the Lord about to be born on earth had none. He found no room among men. He found no room in Plato, none in Aristotle, but in a manger, among beasts of burden and brute animals, and among the simple, too, and the innocent. For that reason the Lord says in the Gospel: "The foxes have dens, and the birds of the air have nests, but the Son of Man has nowhere to lay his head."

(non occ.) Surely if He had so willed it, He might have come moving the heavens, making the earth to shake, and shooting forth His thunderbolts; but such was not the way of His going forth; His desire was not to destroy, but to save; and to trample upon human pride from its very birth, therefore He is not only man, but a poor man, and has chosen a poor mother, who had not even a cradle where she might lay her new born Child; as it follows, and she laid him in the manger.

To prevent you from thinking that his coming to earth was merely an accommodation, and to give you solid grounds for truly believing that his was real flesh, he was conceived, born and nurtured. That his birth might be made manifest and become common knowledge, he was laid in a manger, not in some small room but in a lodging place before numerous people. This was the reason for the swaddling clothes and also for the prophecies spoken long before. The prophecies showed not only that he was going to be a man but that he would be conceived, born and nurtured as any child would be.

A feast day is about to arrive, and it is the most holy and awesome of all feasts. It would be no mistake to call it the chief and mother of all holy days. What feast is that? It is the day of Christ's birth in the flesh.It is from this day that the feasts of the theophany, the sacred Pasch [Passover], the ascension and Pentecost had their source and foundation. Had Christ not been born in the flesh, he would not have been baptized, which is the theophany or manifestation. Nor would he have been crucified, which is the Pasch. Nor would he have sent down the Spirit, which is Pentecost. Therefore, just as different rivers arise from a single source, these other feasts have their beginnings in the birth of Christ.

Now it came to pass, when they were there etc. He has described above the nativity of Christ as to the fitting time and suitable place; here thirdly he describes it as to the birth, which he describes as to three things, namely as to …

(Hom. viii. in Ev.) Bethlehem is by interpretation the house of bread. For it is the Lord Himself who says, I am the bread of life which came down from heaven. (John 6:53.) The place therefore where the Lord was born was before called the house of bread, because it was there that He was to appear in His fleshly nature who should refresh the souls of the elect with spiritual fulness. (ubi sup.) And that He might show that on account of the human form which He took upon Him, He was born as in a strange country, not according to His power but according to His nature.

Rejoice, O Jerusalem, and celebrate, all who love Zion! Today the ancient bond of the condemnation of Adam is loosed. Paradise is opened to us: the serpent is laid low. Of old he deceived the woman in Paradise, but now he sees a woman become …

It came to pass while they were there, the days were completed for her to be delivered, etc. Well, the Lord is born in Bethlehem not just for the indication of the royal lineage but also for the sacrament of the name. For Bethlehem indeed …

Our city and country is the resting-place of the blessed, to which we ought to be travelling with daily increasing virtues. But day by day does Holy Church wait upon her Teacher, and going up from the course of worldly business (which the name of Galilee signifies) to the city of Judah, i. e. the city of confession and praise, make returns of her devotion to the Eternal King. She, after the example of the blessed Virgin Mary, a Virgin has conceived us of the Spirit. Though espoused to another, she is made fruitful by Him; and while visibly joined to the Pontiff who is placed over her, is invisibly filled with the graces of the Spirit. And hence Joseph is well interpreted increased, declaring by his very name, that the earnestness of the master speaking is of no avail, except he receive increasing help from above, that he may be heard. He condescended to become incarnate at that time, that after His birth He might be enrolled in Cæsar's taxing, and in order to bring liberty to us might Himself become subject to slavery. It was well also that our Lord was born at Bethlehem, not only as a mark of the royal crown, but on account of the sacrament of the name. But down to the very end of time, the Lord ceases not to be conceived at Nazareth, to be born at Bethlehem, whenever any of His hearers taking of the flour of the word makes himself a house of eternal bread. Daily in the Virgin's womb, i. e. in the mind of believers, Christ is conceived by faith, born by baptism. […]

He calls the Lord "firstborn," not because we should believe that Mary gave birth to other sons after him, since it is true that she was memorable for her unique perpetual chastity with Joseph her husband. But he properly names him "firstborn" because, as John …

(Metaphrastes) Oh the wonderful straitening and banishment which He underwent, Who holds the whole world in His hands! From the very beginning He seeks for poverty, and ennobles it in His own person.

And while they were there, the days were fulfilled that she should be delivered - Mary seems not to have known that the child must have been born in Bethlehem, agreeably to the prophecy.

And so it was, that while they were there,.... At Bethlehem, waiting to be called and enrolled in their turn, the days were accomplished that she should be delivered; her reckoning was up, the nine months of her going with child were ended, and her full time to bring forth was come.

A little longer stay at Nazareth, and the prophecy would have failed. But lo! with no intention certainly on her part, much less of Cæsar Augustus, to fulfil the prophecy, she is brought from Nazareth to Bethlehem, and at that nick of time her period arrives, and her Babe is born (Ps 118:23).

We have, in these verses, the story of a birth — the birth of the incarnate Son of God, the Lord Jesus Christ. Every birth of a living child is a marvelous event. It brings into being a soul that will never die. But never since the world began, was a birth so marvelous as the birth of Christ. In itself it was a miracle — "God was manifest in the flesh!" The blessings it brought into the world were unspeakable — it opened to man the door of everlasting life!

We have, in these verses, the story of a birth — the birth of the incarnate Son of God, the Lord Jesus Christ. Every birth of a living child is a marvelous event. It brings into being a soul that will never die. But never since the world began, was a birth so marvelous as the birth of Christ. In itself it was a miracle — "God was manifest in the flesh!" The blessings it brought into the world were unspeakable — it opened to man the door of everlasting life! In reading these verses, let us first notice — the TIMES when Christ was born. It was in the days when Augustus, the first Roman emperor, made "a decree that all the world should be taxed." The wisdom of God appears in this simple fact. The scepter was practically departing from Judah. (Genesis 49:10.) The Jews were coming under the dominion and taxation of a foreign power. Strangers were beginning to rule over them. They no longer had a really independent government of their own. The "due time" had come for the promised Messiah to appear. Augustus taxes "the world" — and at once Christ is born. It was a time peculiarly suitable for the introduction of Christ's Gospel. The whole civilized earth was at length governed by one master. There was nothing to prevent the preacher of a new faith going from city to city, and country to country. The princes and priests of the heathen world had been weighed in the balances, and found lacking. Egypt, and Assyria, and Babylon, and Persia, and Greece, and Rome — had all successively proved that "the world by wisdom knew not God." (1 Corinthians 1:21.) Notwithstanding their mighty conquerors, and poets, and historians, and architects, and philosophers — the kingdoms of the world were full of dark idolatry. It was indeed "due time" for God to interpose from Heaven, and send down an almighty Savior! It was "due time" for Christ to be born.