Then He shews that sorrow brings forth joy, short sorrow infinite joy, by an example from nature; A woman when she is in travail hath sorrow, because her hour is come; but as soon as she is delivered of the child, she remembereth no more the anguish, for joy that a man is born into the world.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: Hom. lxxix