Luke 2:39

And when they had performed all things
Relating to the purification of Mary, and the presentation and redemption of her firstborn, and the sacrifices and ceremonies belonging thereunto:

according to the law of the Lord;
which that directed to, and enjoined:

they returned into Galilee:
not that they came from thence to Jerusalem, but from Bethlehem, where Mary gave birth, and her time for purification was now just expired: nor did they go now directly to Galilee; or, if they did, they soon came back again to Bethlehem, since here the wise men found them two years after; when by a divine warning, they went into Egypt, where they remained till Herod's death, and after came into the land of Israel, into the parts of Galilee, and dwelt at Nazareth; for which reason it is here called their own city;

to their own city Nazareth:
Bethlehem was their native city, the place of their birth, at least of their family; and Nazareth was the city of their habitation.