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.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).