Reply to Objection 2: By proclaiming [Christ King] the Magi foreshadowed the constancy of the Gentiles in confessing Christ even until death. Whence Chrysostom says (Hom. ii in Matth.) that, while they thought of the King who was to come, the Magi feared not the king who was actually present. They had not yet seen Christ, and they were already prepared to die for Him.
Reply to Objection 3: As Augustine says in a sermon on the Epiphany (cc.): "The star which led the Magi to the place where the Divine Infant was with His Virgin-Mother could bring them to the town of Bethlehem, in which Christ was born. Yet it hid itself until the Jews also bore testimony of the city in which Christ was to be born: so that, being encouraged by a twofold witness," as Pope Leo says (Serm. xxxiv), "they might seek with more ardent faith Him, whom both the brightness of the star and the authority of prophecy revealed." Thus they "proclaim" that Christ is born, and "inquire where; they believe and ask, as it were, betokening those who walk by faith and desire to see," as Augustine says in a sermon on the Epiphany (cxcix). But the Jews, by indicating to them the place of Christ's birth, "are like the carpenters who built the Ark of Noe, who provided others with the means of escape, and themselves perished in the flood. Those who asked, heard and went their way: the teachers spoke and stayed where they were; like the milestones that point out the way but walk not" (Augustine, Serm. cclxxiii). It was also by God's will that, when they no longer saw the star, the Magi, by human instinct, went to Jerusalem, to seek in the royal city the new-born King, in order that Christ's birth might be publicly proclaimed first in Jerusalem, according to Is. 2:3 : "The Law shall come forth from Sion, and the Word of the Lord from Jerusalem"; and also "in order that by the zeal of the Magi who came from afar, the indolence of the Jews who lived near at hand, might be proved worthy of condemnation" (Remig., Hom. in Matth. ii, 1).
Reply to Objection 4: As Chrysostom says (Hom. ii in Matth. [*From the supposititious Opus Imperfectum]): "If the Magi had come in search of an earthly King, they would have been disconcerted at finding that they had taken the trouble to come such a long way for nothing. Consequently they would have neither adored nor offered gifts. But since they sought a heavenly King, though they found in Him no signs of royal pre-eminence, yet, content with the testimony of the star alone, they adored: for they saw a man, and they acknowledged a God." Moreover, they offer gifts in keeping with Christ's greatness: "gold, as to the great King; they offer up incense as to God, because it is used in the Divine Sacrifice; and myrrh, which is used in embalming the bodies of the dead, is offered as to Him who is to die for the salvation of all" (Gregory, Hom. x in Evang.). And hereby, as Gregory says (Hom. x in Evang.), we are taught to offer gold, "which signifies wisdom, to the new-born King, by the luster of our wisdom in His sight." We offer God incense, "which signifies fervor in prayer, if our constant prayers mount up to God with an odor of sweetness"; and we offer myrrh, "which signifies mortification of the flesh, if we mortify the ill-deeds of the flesh by refraining from them."