Early Alexandrian witnesses secure Matthew 1’s original text, preserving hard readings in the genealogy, the anaphoric incipit, and restrained fulfillment formulas.
NTTC MATTHEW 1:25: she gave birth to [her firstborn] son
The harmonization of passages is likely an intentional change by a copyist, who is seeking have a passage agree with a similar passage from another book. Again, these are generally found in what are known as the Synoptic Gospels,* names Matthew, Mark, and Luke. ...

