And when they had performed all things according to the law of the Lord, they returned into Galilee, to their own city Nazareth.
All Commentaries on Luke 2:39 Go To Luke 2
Theophilus of Antioch
AD 184
Bethlehem was indeed their city, their paternal city, Nazareth the place of their abode.
Now our Lord might have come forth from the womb in the stature of mature age, but this would seem like something imaginary; therefore His growth is gradual, as it follows, And the child grew, and waxed strong.
For if while yet a little child, He had displayed His wisdom, He would have seemed a miracle, but together with the advance of age He gradually showed Himself, so as to fill the whole world. For not as receiving wisdom is He said to be strengthened in spirit. For that which is most perfect in the beginning, how can that become any more perfect. Hence it follows, Filled with wisdom, and the grace of God was in him.