Whether Christ's birth should have been manifested by means of the angels and the star?

❌ Objection 1 : It would seem that Christ's birth should not have been manifested by means of the angels. For angels are spiritual substances, according to Ps. 103:4: "Who maketh His [Vulg.: 'makest Thy'] angels, spirits." But Christ's birth was in the flesh, and not in His spiritual substance. Therefore it should not have been manifested by means of angels.

❌ Objection 2 : Further, the righteous are more akin to the angels than to any other, according to Ps. 33:8: "The angel of the Lord shall encamp round about them that fear Him, and shall deliver them." But Christ's birth was not announced to the righteous, viz. Simeon and Anna, through the angels. Therefore neither should it have been announced to the shepherds by means of the angels.

❌ Objection 3 : Further, it seems that neither ought it to have been announced to the Magi by means of the star. For this seems to favor the error of those who think that man's birth is influenced by the stars. But occasions of sin should be taken away from man. Therefore it was not fitting that Christ's birth should be announced by a star.

❌ Objection 4 : Further, a sign should be certain, in order that something be made known thereby. But a star does not seem to be a certain sign of Christ's birth. Therefore Christ's birth was not suitably announced by a star.