I keep hearing that Calvin believed in the perpetul virginity of Mary, but then I remember also reading, “The conjecture which some have drawn from these words, that she had formed a vow of perpetual virginity, is unfounded and altogether absurd. She would, in that case, have committed treachery by allowing herself to be united to a husband, and would have poured contempt on the holy covenant of marriage; which could not have been done without mockery of God...besides, it is an idle and unfounded supposition that a monastic life existed among the Jews” (Harmony of the Gospels, vol. 1)

Maybe the difference is that he's referring to a vow in specific, but he still seems to cast disdain on the idea that Mary would have gone through a life of Jewish marriage without relations.

__________________
Vaughn Shideler
St. Andrew's Presbyterian Church
Toronto, ON, Canada