Jerome

„

But why is He conceived not of a Virgin merely, but of a Virgin espoused? First, that by the descent of Joseph, Mary’s family might be made known; secondly, that she might not be stoned by the Jews as an adulteress; thirdly, that in her flight into Egypt she might have the comfort of a husband. The Martyr Ignatius (vid. Ign. ad Eph. 19.) adds yet a fourth reason, namely, that his birth might be hid from the Devil, looking for Him to be born of a wife and not of a virgin.