How then was He appointed (one says)? For Aaron was many times appointed as by the Rod, and when the fire came down and destroyed those who wished to intrude into the priesthood. But in this instance, on the contrary, they [the Jewish Priests] not only suffered nothing, but even are in high esteem. Whence then [His appointment]? He shows it from the prophecy. He has nothing [to allege] perceptible by sense, nothing visible. For this cause he affirms it from prophecy, from things future; “But He that said unto Him Thou art My Son, to-day have I begotten Thee.” What has this to do with the Son? Yea (he says) it is a preparation for His being appointed by God.