Let us begin with Genesis, that we may give its place of antiquity and supremacy to this scripture. Now the sentence and ordinance of God respecting the begetting of children  is confessedly being fulfilled to this day, the Creator still fashioning man. For this is quite manifest, that God, like a painter, is at this very time working at the world, as the Lord also taught, "My Father worketh hitherto."  But when the rivers shall cease to flow and fall into the reservoir of the sea, and the light shall be perfectly separated from the darkness, -- for the separation is still going on, -- and the dry land shall henceforth cease to bring forth its fruits with creeping things and four-footed beasts, and the predestined number of men shall be fulfilled; then from henceforth shall men abstain from the generation of children. But at present man must cooperate in the forming of the image of God, while the world exists and is still being formed; for it is said, "Increase and multiply."  And we must not be offended at the ordinance of the Creator, from which, moreover, we ourselves have our being. For the casting of seed into the furrows of the matrix is the beginning of the generation of men, so that bone taken from bone, and flesh from flesh, by an invisible power, are fashioned into another man. And in this way we must consider that the saying is fulfilled, "This is now bone of my bone, and flesh of my flesh."