13.15.16   Or who, except Thou, our God, made for us that firmament of authority over us in Thy Divine Scripture? as it is said, For heaven shall be folded up like a scroll; and now is it stretched over us like a skin. For Thy Divine Scripture is of more eminent authority, since those mortals by whom Thou dispensest it unto us, underwent mortality. And Thou knowest, Lord, Thou knowest, how Thou with skins didst clothe men, when they by sin became mortal. Whence Thou hast like a skin stretched out the firmament of Thy book, that is, Thy harmonizing words, which by the ministry of mortal men Thou spreadest over us. For by their very death was that solid firmament of authority, in Thy discourses set forth by them, more eminently extended over all that be under it; which whilst they lived here, was not so eminently extended. Thou hadst not as yet spread abroad the heaven like a skin; Thou hadst not as yet enlarged in all directions the glory of their deaths.