Epiphanius of Salamis

For I have heard from someone that certain persons are venturing to say that she had marital relations after the Savior's birth. And I am not surprised. The ignorance of persons who do not know the sacred scriptures well and have not consulted histories, always turns them to one thing after another, and distracts anyone who wants to track down something about the truth out of his own head. To begin with, when the Virgin was entrusted to Joseph - lots having compelled her to take this step - she was not entrusted to him for marriage, since he was a widower. He was called her husband because of the Law, but it plainly follows from the Jewish tradition that the Virgin was not entrusted to him for matrimony. It was for the preservation of her virginity in witness to the things to come - [a witness] that Christ's incarnation was nothing spurious but was truly attested, as without a man's seed but truly brought about by the Holy Spirit.