4 Do you see, by what store of proofs this star is shown not to be one of the many, nor to have shown itself according to the order of the outward creation? And for what intent did it appear? To reprove the Jews for their insensibility, and to cut off from them all occasion of excuse for their willful ignorance. For, since He who came was to put an end to the ancient polity, and to call the world to the worship of Himself, and to be worshipped in all land and sea, straightway, from the beginning, He opens the door to the Gentiles, willing through strangers to admonish His own people. Thus, because the prophets were continually heard speaking of His advent, and they gave no great heed, He made even barbarians come from a far country, to seek after the king that was among them. And they learn from a Persian tongue first of all, what they would not submit to learn from the prophets; that, if on the one hand they were disposed to be candid, they might have the strongest motive for obedience; if, on the other hand, they were contentious, they might henceforth be deprived of all excuse. For what could they have to say, who did not receive Christ after so many prophets, when they saw that wise men, at the sight of a single star, had received this same, and had worshipped Him who was made manifest. Much in the same way then as He acted in the case of the Ninevites, when He sent Jonas, and as in the case of the Samaritan and the Canaanitish women; so He did likewise in the instance of the magi. For this cause He also said, “The men of Nineveh shall rise up, and shall condemn:” and, “the Queen of the South shall rise up, and shall condemn this generation:” because these believed the lesser things, but the Jews not even the greater.
“And wherefore,” one may say, “did He attract them by such a vision?” Why, how should He have done? Sent prophets? But the magi would not have submitted to prophets. Uttered a voice from above? Nay, they would not have attended. Sent an angel? But even him they would have hurried by. And so for this cause dismissing all those means, God calls them by the things that are familiar, in exceeding condescension; and He shows a large and extraordinary star, so as to astonish them, both at the greatness and beauty of its appearance, and the manner of its course.
In imitation of this, Paul also reasons with the Greeks from an heathen altar, and brings forward testimonies from the poets. And not without circumcision does he harangue the Jews. Sacrifices he makes the beginning of his instruction to them that are living under the law. For, since to every one what is familiar is dear, both God, and the men that are sent by Him, manage things on this principle with a view to the salvation of the world. Think it not therefore unworthy of Him to have called them by a star; since by the same rule you will find fault with all the Jewish rites also, the sacrifices, and the purifications, and the new moons, and the ark, and the temple too itself. For even these derived their origin from Gentile grossness. Yet for all that, God, for the salvation of them that were in error, endured to be served by these things, whereby those without were used to serve devils; only He slightly altered them; that He might draw them off by degrees from their customs, and lead them towards the highest wisdom. Just so He did in the case of the wise men also, not disdaining to call them by sight of a star, that He might lift them higher ever after. Therefore after He has brought them, leading them by the hand, and has set them by the manger; it is no longer by a star, but by an angel that He now discourses unto them. Thus did they little by little become better men.
This did He also with respect to them of Ascalon, and of Gaza. For those five cities too (when at the coming of the ark they had been smitten with a deadly plague, and found no deliverance from the ills under which they lay)— the men of them called their prophets, and gathered an assembly, and sought to discover an escape from this divine scourge. Then, when their prophets said that they should yoke to the ark heifers untamed, and having their first calves, and let them go their way, with no man to guide them, for so it would be evident whether the plague was from God or whether it was any accident which brought the disease—(“for if,” it is said, “they break the yoke in pieces for want of practice, or turn where their calves are lowing, 'it is a chance that has happened;' but if they go on right, and err not from the way, and neither the lowing of their young, nor their ignorance of the way, have any effect on them, it is quite plain that it is the hand of God that has visited those cities:”)— when, I say, on these words of their prophets the inhabitants of those cities obeyed and did as they were commanded, God also followed up the counsel of the prophets, showing condescension in that instance also, and counted it not unworthy of Himself to bring to effect the prediction of the prophets, and to make them seem trustworthy in what they had then said. For so the good achieved was greater, in that His very enemies themselves bore witness to the power of God; yea, their own teachers gave their voice concerning Him. And one may see many other such things brought about by God. For what took place with respect to the witch, is again like this sort of dispensation; which circumstance also you will now be able to explain from what has been said.
With respect to the star, we have said these things, and yet more perhaps may be said by you; for, it is said, “Give occasion to a wise man, and he will be yet wiser:” but we must now come to the beginning of what has been read.
Source: Homilies on the Gospel of St. Matthew (New Advent)