John Chrysostom

But how did Archelaus reign over Judaea, when Pontius Pilate was governor? Herod's death had recently taken place, and the kingdom had not yet been divided into many parts; but as he had only just ended his life, the son for a while kept possession of the kingdom "in the room of his father Herod;" his brother also bearing this name, which is the reason why the evangelist added, "in the room of his father Herod." It may be said, however, "if he was afraid to settle in Judaea on account of Archelaus, he had cause to fear Galilee also …

Homily on the Gospel of Matthew 9 ↗

Augustine of Hippo

Here it may be asked, How then could his parents go up every year of Christ's childhood to Jerusalem, as Luke relates, if fear of Archelaus now prevented them from approaching it? This difficulty is easily solved. At the festival they might escape notice in the crowd, and by returning soon, where in ordinary times they might be afraid to live. So they neither became irreligious by neglecting the festival, nor notorious by dwelling continually in Jerusalem. …

Catena Aurea by Aquinas ↗

Jerome

But hearing that Archelaus was reigning in Judea, in place of his father Herod, he was afraid to go there. And being warned in a dream, he withdrew to the region of Galilee. Many fall into error due to ignorance of history, thinking that he is the same Herod who mocked the Lord in his passion, and who is reported to be dead now. …

Commentary on Matthew ↗

Hilary of Poitiers

But finding the seed of their hereditary unbelief still abiding, they fear and withdraw; admonished by a vision, to wit, seeing the Holy Ghost poured upon the Gentiles, they carry Christ to them.

Catena Aurea by Aquinas ↗