13.24.37   If therefore we conceive of the natures of the things themselves, not allegorically, but properly, then does the phrase increase and multiply, agree unto all things, that come of seed. But if we treat of the words as figuratively spoken (which I rather suppose to be the purpose of the Scripture, which doth not, surely, superfluously ascribe this benediction to the offspring of aquatic animals and man only); then do we find "multitude" to belong to creatures spiritual as well as corporeal, as in heaven and earth, and to righteous and unrighteous, as in light and darkness; and to holy authors who have been the ministers of the Law unto us, as in the firmament which is settled betwixt the waters and the waters; and to the society of people yet in the bitterness of infidelity, as in the sea; and to the zeal of holy souls, as in the dry land; and to works of mercy belonging to this present life, as in the herbs bearing seed, and in trees bearing fruit; and to spiritual gifts set forth for edification, as in the lights of heaven; and to affections formed unto temperance, as in the living soul. In all these instances we meet with multitudes, abundance, and increase; but what shall in such wise increase and multiply that one thing may be expressed many ways, and one expression understood many ways; we find not, except in signs corporeally expressed, and in things mentally conceived. By signs corporeally pronounced we understand the generations of the waters, necessarily occasioned by the depth of the flesh; by things mentally conceived, human generations, on account of the fruitfulness of reason. And for this end do we believe Thee, Lord, to have said to these kinds, Increase and multiply. For in this blessing, I conceive Thee to have granted us a power and a faculty, both to express several ways what we understand but one; and to understand several ways, what we read to be obscurely delivered but in one. Thus are the waters of the sea replenished, which are not moved but by several significations: thus with human increase is the earth also replenished, whose dryness appeareth in its longing, and reason ruleth over it.