Now all this was done, that it might be fulfilled which was spoken of the Lord by the prophet, saying,
Matthew does not limit this to a mere name but includes all that is heavenly and divine in Christ's conception, which is why he says all this was done. The Jews with their accustomed malice corrupt Isaiah's clear passage, some absurdly claiming it concerns Hezekiah, others an unknown son of Ahaz, but such blindness is what God inflicts on enemies of Christ.
AI summary
Christ's incarnation is mystery to be adored, not probed. The espousal to Joseph honored the marriage state and saved the virgin's credit; without it, the world would ask whether He was a harlot's son rather than a carpenter's. God guards the reputation of His children with jealous care.
AI summary
Commenting on Matthew 1:18-25
These are Matthew's words, not the Angel's: Mary's virginity, her conception by the Holy Ghost, and all the circumstances occurred so that Isaiah's prophecy would be fulfilled. What the Prophet spoke was by divine inspiration, the very word of God, and what was foretold came to pass in strict, proper, and literal sense.
AI summary