Now this commandment of the law seems to have had its fulfilment in the incarnate God, in a very remarkable and peculiar manner. For He alone, ineffably conceived and incomprehensibly brought forth, opened the virgin’s womb, till then unopened by marriage, and after this birth miraculously retaining the seal of chastity.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: in Hom. de occursu Domini.