John Chrysostom
Catena Aurea · Matthäusevangelium 2
And when they were departed, behold, the angel of the Lord appeareth to Joseph in a dream, saying, Arise, and take the young Child and His mother, and flee into Egypt, and be thou there until I bring thee word; for Herod will seek the young Child to destroy Him. When he arose, he took the young Child and His mother by night, and departed into Egypt: And was there until the death of Herod: that it might be fulfilled which was spoken of the Lord by the prophet, saying, Out of Egypt have I called my Son.
It is a law of prophecy, that in a thousand places many things are said of some and fulfilled of others. As it is said of Simeon and Levi, I will divide them in Jacob, and scatter them in Israel; (Gen. 49:7.) which was fulfilled not in themselves, but in their descendants. So here Christ is by nature the Son of God, and so the prophecy is fulfilled in Him.