The sermon continues a series in Matthew, picking up directly after last week's study of the genealogy in chapter 1 and moving into Matthew 1:18-25, the account of the virgin birth. The preacher recalls that Matthew's entire purpose in writing his Gospel is apologetic: he writes to Jewish readers steeped in the Old Testament to prove, prophecy by prophecy, that Jesus is the promised Messiah. Two messianic credentials mattered above all to that audience — the Messiah must be a son of David, and he must be born in Bethlehem — and the genealogy in chapter 1 seemed to undercut both, since it traces Joseph's line, not Jesus' own, and Jesus is known as "Jesus of Nazareth," an unimpressive backwater rather than David's city. The sermon frames today's passage as Matthew's answer to the first problem (is Jesus truly David's son?), promising that next week's look at chapter 2 will answer the second (was he born in Bethlehem?).

Working through verse 18, the sermon addresses head-on the modern suspicion that Mary's story of a virgin conception was an invented cover for infidelity, noting that such a lie would have been pointless and dangerous, since Joseph was already prepared to divorce her quietly rather than expose her to the law's penalty. The sermon then turns to the Greek text, observing that verse 18 literally speaks of the "genesis" of Jesus Christ, deliberately echoing the creation language of Genesis, where the Spirit hovers over the waters and breathes life into Adam. Matthew is signaling that God is doing a new creation in Christ — one requiring no human mediation, unlike the demigod myths of the surrounding Greco-Roman culture, which Matthew's studiously non-sexualized, non-gendered language about the Spirit pointedly avoids.

Verse 19 is reread against the common ESV rendering: rather than "because he was a just man, he was unwilling to shame her," the sermon (following commentator R.T. France) argues Joseph acted righteously despite being entitled under the Mosaic law to expose Mary to the shame — and potentially, absent Roman restrictions on capital punishment, the death — prescribed for apparent adultery, choosing instead the compassionate path of quiet divorce. That plan is interrupted in verse 20 by the angel's appearance, who addresses Joseph pointedly as "son of David" and instructs him to take Mary as his wife. The sermon identifies this as the hinge of the whole passage: Jesus enters David's royal line not by blood but by legal adoption, resolving what the sermon calls an inbuilt tension between two messianic prophecies that seem to contradict each other — a virgin-born son with no human father, yet also a "son of David." The resolution, drawn from Isaiah 7:14's language of naming ("they shall call his name Immanuel"), is that Joseph's act of naming the child Jesus in verse 21 and verse 25 constitutes the legal adoption that grafts Jesus into David's household.

The sermon then develops a biblical-theology digression on barrenness and virginity, tracing a pattern from Genesis 3's promise that a "seed of the woman" would crush the serpent, through the recurring barrenness of matriarchs like Sarah, Rebekah, Rachel, and Hannah, to Mary's virginity as the ultimate instance: God sustaining and fulfilling his promised lineage entirely by his own power, without any human cooperation, and specifically through women who bore shame and vulnerability in a culture that prized childbearing above nearly everything. Mary's shame, like Jesus' own later disgrace, is framed as something God transforms into glory.

Finally, the sermon explains why the child is named both Jesus ("the Lord saves") and Immanuel ("God with us"), arguing that Matthew's juxtaposition of these two names and their glosses — "call his name Jesus, for he will save," and "they shall call his name Immanuel... God with us" — quietly identifies Jesus not merely as God's representative but as God himself, paralleling John's prologue. The sermon closes on verse 21's climax, "he will save his people from their sins," contrasting this spiritual mission with the political, nationalistic salvation the Jewish leaders expected of the Messiah, and warning contemporary Christians against wanting the church to bypass gospel proclamation for social or humanitarian action. The sermon ends with a direct evangelistic appeal: Jesus did not come to teach people how to live holy lives but to accomplish, through his death, the salvation no one could achieve for themselves, and hearers are invited to come to him regardless of how unworthy they feel.

Bible Verses Used

• Matthew 1:18-25: The sermon's central text, recounting the virgin birth of Jesus and Joseph's obedience to the angel's instruction to take Mary as his wife and name the child Jesus.

• Isaiah 7:14: Cited as the prophecy Matthew says is fulfilled in the virgin birth, and its "they shall call his name Immanuel" is read as the key to understanding Jesus' adoption into David's line by naming.

• Genesis 1:2: Referenced to show the Spirit hovering over the waters at creation, establishing the "new creation" language the sermon finds echoed in Matthew's account of Jesus' conception.

• John 1:1: Drawn on as a parallel to Matthew's implicit claim that Jesus is God himself, alongside John's explicit statement that the Word was God.