[99] But God, on one occasion, employed the six days for the completion of the world, though he had no need of any length of time for such a purpose; but each man, as partaking of a mortal nature, and as being in need of ten thousand things for the unavoidable necessities of life, ought not to hesitate, even to the end of his life, to provide himself with all requisites, always allowing himself an interval of rest on the sacred seventh day.