Although the theme of Mary as a new or second Eve is first explicitly found in the writings of Justin Martyr, there is an antecedent probability that it is of apostolic origin and familiar to St Paul. I argue that this theme helps to interpret several passages in the Pauline corpus that have remained without adequate explanation. The first and principal passage discussed is 1 Cor. 11:11-12, where the phrase ‘the man by the woman’ is put in parallel with the original formation of the woman ‘from the man’. Once it is thus accepted that St Paul understood the Virgin Mary through this typological lens, three others passages are seen to yield a more coherent and richer sense: ‘made of a woman’ in Gal. 4:4; ‘saved through child-bearing’ in 1 Tim. 2:14-15; and ‘each in his own “tagma”’ in 1 Cor. 15:23.