Proceed therefore no further, neither require anything more than what hath been said; neither say thou, “But how was it that the Spirit wrought this of a virgin?” For if, when nature is at work, it is impossible to explain the manner of the formation; how, when the Spirit is working miracles, shall we be able to express these? And lest thou shouldest weary the evangelist, or disturb him by continually asking these things, he hath said who it was that wrought the miracle, and so withdrawn himself. “For I know,” saith he, “nothing more, but that what was done was the work of the Holy Ghost.”