Mark 3:32

Because the relations of the Lord had come to seize upon Him, as if beside Himself, His mother, urged by the sympathy of her love, came to Him. Wherefore it is said, "And there came unto Him His mother, and, standing without, sent unto Him, calling Him."

From this it is manifest that His brethren and His mother were not always with Him; but because He was beloved by them, they come from reverence and affection, waiting without. Wherefore it goes on, "And the multitude sat about Him, &c."

The brother of the Lord must not be thought to be the sons of the ever-virgin Mary, as Helvidius says [ed. note: The perpetual virginity of the Mother of God is reckoned by White, Bramhall, Patrick and Pearson, amongst the traditions which have ever been held in the Catholic Church. For an account of the heretics who denied it, see Bp. Pearson on the Creed, Art, 3, p. 272, note x., also Catena Aurea in Matt., p 58, note c], nor the sons of Joseph by a former marriage, as some think, but rather they must be understood to be His relations.

But another Evangelist says, that His brethren did not believe on Him. [John 7:5] With which this agrees, which says, that they sought Him, waiting without, and with this meaning the Lord does not mention them as relations. Wherefore it follows, "And He answered them, saying, Who is My mother or My brethren?" But He does not here mention His mother and His brethren altogether with reproof, but to shew that a man must honour his own soul above all earthly kindred; wherefore this is fitly said to those who called Him to speak with His mother and relations, as if it were a more useful task than the teaching of salvation.

Being asked therefore by a message to go out, He declines, not as though He refused the dutiful service of His mother, but to shew that He owes more to His Father's mysteries than to His mother's feelings. Nor does He rudely despise His brothers, but, preferring His spiritual work to fleshly relationship, He teaches us that religion is the bond of the heart rather than that of the body. Wherefore it goes on, "And looking round about on them which sat about Him, He said, Behold My mother and My brethren."

By this, the Lord shews that we should honour those who are relations by faith rather than those who are relations by blood. A man indeed is made the mother of Jesus by preaching Him [ed. note: Nearly the same idea occurs in St. Ambrose, in Luc. 2, 8]; for He, as it were, brings forth the Lord, when he pours Him into the heart of his hearers.

But let us be assured that we are His brethren and His sisters, if we do the will of the Father; that we may be joint-heirs with Him, for He discerns us not by sex but by our deeds. Wherefore it goes on: "Whosoever shall do the will of God, &c."

He does not therefore say this, as denying His mother, but as shewing that He is worthy of honour, not only because she bore Christ, but on account of her possessing every other virtue.

By mystically, the mother and brother of Jesus means the synagogue, (from which according to the flesh He sprung,) and the Jewish people who, while the Saviour is teaching within, come to Him, and are not able to enter, because they cannot understand spiritual things. But the crowd eagerly enter, because when the Jews delayed, the Gentiles flocked to Christ; but His kindred, who stand without wishing to see the Lord, are the Jews who obstinately remained without, guarding the letter, and would rather compel the Lord to go forth to them to teach carnal things, than consent to enter in to learn spiritual things of Him. If therefore not even His parents when standing without are acknowledged, how shall we be acknowledged, if we stand without? [ed. note: see Ambr. in Luc., 6, 37] For the word is within and the light within.

3. But if we are to end the controversy by saying this, why do not our opponents themselves say it? While they assert the death of Christ to have been not real but feigned, why do they make out that He had no birth at all, not even of the same kind as His death? If they had so much regard for the authority of the evangelist as to oblige them to admit that Christ suffered, at least in appearance, it is the same authority which testifies to His birth. Two evangelists, indeed, give the story of the birth; but in all we read of Jesus having a mother. Perhaps Faustus was unwilling to make the birth an illusion, because the difference of the genealogies given in Matthew and Luke causes an apparent discrepancy. …

87. Matthew then proceeds with his narrative in the following terms: “While He yet talked to the people, behold, His mother and His brethren stood without, desiring to speak to Him;” and so on, down to the words, “For whosoever shall do the will of my Father which is in heaven, the same is my brother, and sister, and mother.” Without doubt, we ought to understand this to have occurred in immediate sequence on the preceding incidents. For he has prefaced his transition to this narrative by the words, “While He yet talked to the people;” and what does this term “yet” refer to, but to the very matter of which He was speaking on that occasion? For the expression is not, “When He talked to the people, Behold, His mother and His brethren;” but, “While He was yet speaking,” etc. …