But the generation of Christ was as follows. Let the diligent reader inquire and say: Since Joseph is not the father of the Lord Savior, why does the order of the generation lead to Joseph? To this we will first respond that it is not the usual practice of the Scriptures to trace the order of women in generations. Furthermore, Joseph and Mary were from the same tribe, so according to the Law, Joseph had to take her as a relative, and they were both counted in Bethlehem, being from the same lineage.
When his mother Mary had been betrothed to Joseph, why is she conceived not from a simple virgin, but from a betrothed one? First, so that through the generation, the origin of Mary could be shown by Joseph. Second, so that she would not be stoned by the Jews as an adulteress. Third, so that fleeing to Egypt, she would have the comfort of her husband. Ignatius the Martyr also added a fourth cause as to why she was conceived from the betrothed one: in order to hide the birth from the devil, while he thought it was not from a virgin, but from a wife.
Before they came together, she was found to be with child by the Holy Spirit. And Joseph her husband, being a just man and unwilling to put her to shame, resolved to divorce her quietly. But as he considered these things, behold, an angel of the Lord appeared to him in a dream, saying, 'Joseph, son of David, do not fear to take Mary as your wife, for that which is conceived in her is from the Holy Spirit. She will bear a son, and you shall call his name Jesus, for he will save his people from their sins.' All this took place to fulfill what the Lord had spoken by the prophet: 'Behold, the virgin shall conceive and bear a son, and they shall call his name Immanuel' (which means, God with us). When Joseph woke from sleep, he did as the angel of the Lord commanded him: he took his wife, but knew her not until she had given birth to a son. And he called his name Jesus.
1:19
(Ver. 19.) But Joseph her husband, being a just man, and not willing publicly to expose her, was minded privately to put her away. But while he thought on these things, behold the angel of the Lord appeared to him in his sleep, saying: If any man take her as wife that has been defiled, her defilement is upon him (1 Cor. VI, 16). And it is commanded in the Law, not only guilty persons, but also those who have knowledge of the crime, to be subject to punishment (Lev. V): how then does Joseph, who conceals the crime of his wife, deserve to be called just? But this is a testimony to Mary, that Joseph knowing her chastity, and wondering at what had happened, kept silent about it, not understanding its mystery.
1:20
(Verse 20.) Joseph, son of David, do not be afraid to take Mary as your wife. For what is conceived in her is from the Holy Spirit. She will give birth to a son. And as we said before, the term 'spouses' is used for wives, as the book against Helvidius explains more fully. And an angel speaks to Joseph in a dream with gentle affection, to confirm the righteousness of his silence. It is also noteworthy that Joseph is said to be the son of David, in order to show that Mary is also from the line of David.
1:21
(Verse 21.) And you shall call his name Jesus. For he will save his people from their sins. Jesus means 'Savior' in Hebrew. The evangelist noted the etymology of his name, saying: 'You shall call his name Jesus, for he will save his people.'
1:22-24
(Verse 22 onwards) Now all this was done that it might be fulfilled which was spoken by the Lord through the prophet, saying: Behold, a virgin shall be with child, and bring forth a son, and they shall call his name Emmanuel, which being interpreted is, God with us. Then Joseph, being raised from sleep, did as the angel of the Lord had bidden him. And all this was done that it might be fulfilled which was spoken by the Lord through the prophet, saying: Behold, a virgin shall conceive in her womb. But the prophet, because he predicts the future, signifies what is going to happen, and he writes, he will receive: but the evangelist, because he narrates a story not about the future but about the past, changed he will receive to he has received. For he who has, will by no means receive. We read something similar in the Psalms: You have ascended on high, you have led captivity captive: you have received gifts among men (Ps. 67:19). The apostle, in citing this testimony, did not say he received, but he gave: because there it signified about the future that he would receive; here it narrates about the one who had already given what he had received.
1:25
(Verse 25.) And he took his wife, and did not know her until she had brought forth her firstborn son: and he called his name Jesus. From this passage, some very perverse people suspect and say that Mary had other children, arguing that the term firstborn is only used when someone has siblings. However, this is contrary to the custom in the divine scriptures, where the term firstborn is not applied to someone who has siblings, but to the one who is born first. Read the aforementioned book against Helvidius.
2:2-4
(Chapter 2, Verses 2 and following) For we have seen his star in the East, and have come to worship him. When King Herod heard this, he was troubled, and all Jerusalem with him. And gathering together all the chief priests and scribes of the people, he inquired of them where the Christ was to be born. To confound the Jews and make them understand the birth of Christ from the Gentiles, a star rises in the East, which the successors of Balaam, through prophecy, had known. Read the book of Numbers (Chapter XXIV). The magi, however, were guided by a star to Judea, so that when questioned by the priests, they would be able to give an account of the coming of Christ.
2:5
(Verse 5) But they said to him: in Bethlehem of Judea. For thus it is written by the prophet: And you, Bethlehem, land of Judah, are by no means least among the leaders of Judah. For from you shall come forth a ruler, who will shepherd my people Israel. This is an error of the scribes. We think that it was first written by the evangelist, as we read in the Hebrew itself, 'of Judah,' not 'of Judea.' For what other Bethlehem of the nations is there, that it should be distinguished here as 'of Judea'? But it is called Judaea for this reason, because there is another Bethleem in Galilee. Read the book of Joshua the son of Nun (Joshua 19). Finally, even in the testimony itself, which is taken from the prophecy of Micah, it is written thus: And you, O Bethlehem, land of Judah (Micah 5:2).
2:11
(Verse 11.) And opening their treasures, they offered him gifts, gold, frankincense, and myrrh. The presbyter Juvencus beautifully captures the significance of the gifts in one verse.
Thus, they bring gifts of gold, myrrh, and incense to the king, the people, and the God.
And having received an answer in a dream, they returned to their own country by another way, so as not to go back to Herod. Those who had presented gifts to the Lord subsequently received a response. However, the response (which is called χρηματισθέντες in Greek) was not made through an angel, but through the Lord Himself, in order to demonstrate the privilege of Joseph's merits. They returned by another way because they were not to mix with the unfaithfulness and treachery of the Jews.
2:13-14
(Vers. 13, 14.) Behold, an angel of the Lord appeared to Joseph in a dream, saying: Rise and take the child and his mother, and flee into Egypt, and stay there until I tell you. For it will come to pass that Herod will seek the child to destroy him. So Joseph rose and took the child and his mother by night, and went to Egypt; and he stayed there until the death of Herod. When he takes the child and his mother to go to Egypt, he takes them by night and in darkness; but when he returns to Judea, neither night nor darkness are mentioned in the Gospel.
2:15-16
(Verse 15, 16.) So that what was spoken by the Lord through the prophet might be fulfilled, saying: Out of Egypt I called my son. Then Herod, when he saw that he had been tricked by the wise men, became furious, and he sent and killed all the male children who were in Bethlehem and in all its districts, from two years old and under, according to the time that he had ascertained from the wise men. Let those who deny the truth of the Hebrew scriptures answer where this is read in the Septuagint translators. But since they did not find it, we will tell them it is written in the prophet Hosea (Chapter 11), as they can also confirm with the copies we recently published. However, we can reconcile (or console) this passage differently for the contentious, whose behavior the Apostle Paul denies having. And we present the testimony from Numbers, with Balaam saying: God has called him out of Egypt; His glory is like a unicorn (Numbers 23:22).