Genesis 13:8

On Abraham’s return out of Egypt to the place he had left, Lot, his brother’s son, departed from him into the land of Sodom, without breach of charity. For they had grown rich, and began to have many herdmen of cattle, and when these strove together, they avoided in this way the pugnacious discord of their families. Indeed, as human affairs go, this cause might even have given rise to some strife between themselves. Consequently these are the words of Abraham to Lot, when taking precaution against this evil, “Let there be no strife between me and thee, and between my herdmen and thy herdmen; for we be brethren. …

35. It is waste of time to observe Faustus’ remark, that Abraham falsely called Sara his sister; as if Faustus had discovered the family of Sara, though it is not mentioned in Scripture. In a matter which Abraham knew, and we do not, it is surely better to believe the patriarch when he says what he knows, than to believe Manichæus when he finds fault with what he knows nothing about. Since, then, Abraham lived at that period in human history, when, though marriage had become unlawful between children of the same parents, or of the same father or mother, no law or authority interfered with the custom of marriage between the children of brothers, or any less degree of consanguinity, why should he not have had as wife his sister, that is, a woman descended from his father? For he himself told the king, when he restored Sara, that she was his sister by his father, and not by his mother. …

2. “He went down,” as the evangelist says, “to Capernaum, He, and His mother, and His brethren, and His disciples; and they continued there not many days.” Behold He has a mother, and brethren, and disciples: whence He has a mother, thence brethren. For our Scripture is wont to call them brethren, not only that are sprung from the same man and woman, or from the same mother, or from the same father, though by different mothers; or, in truth, that are of the same degree as cousins by the father’s or mother’s side: not these alone is our Scripture wont to call brethren. The Scripture must be understood as it speaks. It has its own language; one who does not know this language is perplexed and says, Whence had the Lord brethren? For surely Mary did not give birth a second time? Far from it! With her begins the dignity of virgins. …

[5.] And if you please, let us try each by examples. For tell me, what was there ever more exalted than Abraham? And yet it was he that said, “I am but dust and ashes;” it was he who said, ( Gen. xiii. 8 ) “Let there be no strife between me and thee.” But this man, so humble, ( Gen. xiv. 21-24 .) despised (“Persian,” i.e. perhaps, “of Elam.”) Persian spoils, and regarded not Barbaric trophies; and this he did of much highmindedness, and of a spirit nobly nurtured. For he is indeed exalted who is truly humble; (not the flatterer nor the dissembler;) for true greatness is one thing, and arrogance another. …

[10.] By what means then may one find a remedy for this manifold distemper? By bringing forward those that have trodden it under foot, and with an eye to their image so ordering one’s own life. For so the patriarch Abraham. nay, let none accuse me of tautology if I often make mention of him, and on all occasions: this being that which most of all shows him wonderful, and deprives them that refuse to imitate him of all excuse. For, if we exhibit one doing well in this particular, and another in that, some one might say that virtue is hardly to be attained; for that it is scarcely possible to succeed in all those things together, whereof each one of the saints hath performed only a part. …

11. I hear that you have erected a hospice for strangers at Portus and that you have planted a twig from the tree of Abraham upon the Ausonian shore. Like Æneas you are tracing the outlines of a new encampment; only that, whereas he, when he reached the waters of the Tiber, under pressure of want had to eat the square flat cakes which formed the tables spoken of by the oracle, you are able to build a house of bread to rival this little village of Bethlehem wherein I am staying; and here after their long privations you propose to satisfy travellers with sudden plenty. Well done. You have surpassed my poor beginning. You have reached the highest point. You have made your way from the root to the top of the tree. You are the first of monks in the first city of the world: you do right therefore to follow the first of the patriarchs. …

16. Now here we have the explanation of what I am endeavouring to show, how it is that the sons of Mary, the sister of our Lord’s mother, who though not formerly believers afterwards did believe, can be called brethren of the Lord. Possibly the case might be that one of the brethren believed immediately while the others did not believe until long after, and that one Mary was the mother of James and Joses, namely, “Mary of Clopas,” who is the same as the wife of Alphæus, the other, the mother of James the less. In any case, if she (the latter) had been the Lord’s mother S. John would have allowed her the title, as everywhere else, and would not by calling her the mother of other sons have given a wrong impression. …