Matthew 1:20

In this word appeared is conveyed the power of Him that did appear, allowing Himself to be seen where and how He pleases. (in Luc. ii. 5.) Be not troubled that he calls her his wife; for she is not herein robbed of her virginity, but her wedlock is witnessed to, and the celebration of her marriage is declared.

The matter then being in this state, and all at their wits' end, the angel comes to solve all their difficulties. But it is worth inquiring, why the angel did not speak sooner, before the husband had such thoughts: but, "when he thought on it," not until then, he came; for it is said, "While he thought on these things, the angel" comes. And yet to her he declares the good tidings even before she conceived. And this again contains another difficulty; for even though the angel had not spoken, wherefore was the Virgin silent, who had been informed by the angel; and why, when she saw her betrothed husband in trouble, did she not put an end to his perplexity? Wherefore then did not the angel speak before Joseph became troubled. For we must needs explain the former difficulty first. For what reason then did he not speak? Lest Joseph should be unbelieving, and the same happen to him as to Zacharias. For when the thing was visible, belief was thenceforth easy; but when it had not yet a beginning, it was not equally easy to receive his saying. For this reason the angel spake not at the first, and through the same cause the Virgin too held her peace. For she did not think to obtain credit with her betrothed husband, in declaring to him a thing unheard of, but rather that she should provoke him the more, as though she were cloking a sin that had been committed. Since if she herself, who was to receive so great a favor, is affected somewhat after the manner of man, and saith, "How shall this be, seeing I know not a man?" much more would he have doubted; and especially when hearing it from the woman who was under suspicion. Wherefore the Virgin saith nothing to him, but the angel, the time demanding it, presents himself to him. Why then, it may be asked, did he not so in the Virgin's case also, and declare the good tidings to her after the conception? Lest she should be in agitation and great trouble. For it were likely that she, not knowing the certainty, might have even devised something amiss touching herself, and have gone on to strangle or to stab herself, not enduring the disgrace. For wondrous indeed was that Virgin, and Luke points out her excellency, saying, that when she heard the salutation, she did not straightway pour herself out, neither did she accept the saying, but "was troubled," seeking "what manner of salutation this might be." Now she who was of such perfect delicacy would even have been distracted with dismay at the thought of her shame, not expecting, by whatever she might say, to convince any one who should hear of it, but that what had happened was adultery. Therefore to prevent these things, the angel came before the conception. Besides that, it was meet that womb should be free from trouble which the Maker of all things entered; and the soul rid of all perturbation, which was thought worthy to become the minister of such mysteries. For these reasons He speaks to the Virgin before the conception, but to Joseph at the time of travail. And this many of the simpler sort, not understanding, have said there is a discordance; because Luke saith it was Mary to whom he declared the good tidings, but Matthew, that it was Joseph; not knowing that both took place. And this sort of thing it is necessary to bear in mind throughout the whole history; for in this way we shall solve many seeming discordances. The angel then comes, when Joseph is troubled. For in addition to the causes mentioned, with a view also to the manifestation of his self-command, he defers his coming. But when the thing was on the point of taking place, then at last he presents himself. "While he thought on these things, an angel appeareth to Joseph in a dream." Seest thou the mildness of the husband? So far from punishing, he did not even declare it to any one, no not even to her whom he suspected, but was thinking it over with himself, as aiming to conceal the cause even from the Virgin herself. For neither is it said that he was minded to "cast her out,

But we are not to think that she ceased to be betrothed, because she is here called wife, since we know that this is the Scripture manner to call the man and woman, when espoused, husband and wife; and this is confirmed by that text in Deuteronomy, If one find a virgin that is betrothed to a man in the field, and offer violence to her, and lie with her, he shall die, because he hath humbled his neighbour's wife. (Deut. 22:23.)

(Enchir. 38.) But shall we therefore say that the Holy Spirit is the Father of the man Christ, that as God the Father begot the Word, so the Holy Spirit begot the man? This is such an absurdity, that the ears of the faithful cannot bear it. How then do we say that Christ was born by the Holy Spirit, if the Holy Spirit did not beget Him? Did He create Him? For so far as He is man He was created, as the Apostle speaks; He was made of the seed of David according to the flesh. (Rom. 1:3.) For though God made the world, yet is it not right to say that it is the Son of God, or born by Him, but that it was made, or created, or formed by Him. But seeing that we confess Christ to have been born by the Holy Spirit, and of the Virgin Mary, how is He not the Son of the Holy Spirit, and is the Son of the Virgin? It does not follow, that whatever is born by any thing, is therefore to be called the son of that thing; for, not to say that of man is born in one sense a son, in another a hair, or vermin, or a worm, none of which are his son, certainly those that are born of water and the Spirit none would call sons of water; but sons of God their Father, and their Mother the Church. Thus Christ was born of the Holy Spirit, and yet is the Son of God the Father, not of the Holy Spirit.

As her betrothed husband also he is admonished not to be afraid; for the mind that compassionates has most fear; as though he were to say, Here is no cause of death, but of life; she that brings forth life, does not deserve death.