13. I do set my bow in the cloud. From these words certain eminent theologians have been induced to deny, that there was any rainbow before the deluge: which is frivolous. For the words of Moses do not signify, that a bow was then formed which did not previously exist; but that a mark was engraven upon it, which should give a sign of the divine favor towards men. That this may the more evidently appear, it will be well to recall to memory what we have elsewhere said, that some signs are natural, and some preternatural. And although there are many examples of this second class of signs in the Scriptures; yet they are peculiar, and do not belong to the common and perpetual use of the Church. For, as it pleases the Lord to employ earthly elements, as vehicles for raising the minds of men on high, so I think the celestial arch which had before existed naturally, is here consecrated into a sign and pledge; and thus a new office is assigned to it; whereas, from the nature of the thing itself, it might rather be a sign of the contrary; for it threatens continued rain. Let this therefore he the meaning, of the words, ‘As often as the rain shall alarm you, look upon the bow. For although it may seem to cause the rain to overflow the earth, it shall nevertheless be to you a pledge of returning dryness, and thus it will then become you to stand with greater confidence, than under a clear and serene sky.’ Hence it is not for us to contend with philosophers respecting the rainbow; for although its colors are the effect of natural causes, yet they act profanely who attempt to deprive God of the right and authority which he has over his creatures.