Matthew Poole and continuators on Matthew 2:22

22 But when he heard that Archelaus did reign in Judea in the room of his father Herod, he was afraid to go thither: Notwithstanding being warnned of God in a dream, he turned aside into the parts of Galilee.

The true King of the Iews being born, The singular Providence of God so ordered it, that there were no more constituted Governours of Iudea, under the Title of Kings, tho they are said to Reign, because the Tetrarchs in their Provinces, exercised a Regal-Power: For tho Archelaus was by his Fathers Will declared his Successor in the Kingdom, yet the Emperour and Senate of Rome was to confirm him, who made Archelaus Tetrarch of Iudea, as appears by this Chap. Antipas another of his Sons, called also by his Fathers name, Tetrarch of Galilee, Philip, another of his Sons, Tetrarch of Iturea, and Lysanias Tetrarch of Abylene and set a Governour over Iudea which was Pontius Pilate, as appeareth by Luk. 3.1. of all the Sons of Herod, Archelaus is said to be of the most fierce, and bloody Disposition, which made Ioseph afraid to go thither. His Brother Herod Antipas is reported of a much milder Disposition, and more inactive Temper; so Ioseph not without the Direction of God goeth into his own Province which was Galilee.