2. Now, when it is said that all things were made by Him, and that in Him were all things created, both things in heaven and things on earth, there can be no doubt that also those things which are in the firmament, which is called heaven, and in which those luminaries are said to be placed, are included amongst the number of heavenly things. And secondly, seeing that the course of the discussion has manifestly discovered that all things were made or created, and that amongst created things there is nothing which may not admit of good and evil, and be capable of either, what are we to think of the following opinion which certain of our friends entertain regarding sun, moon, and stars, viz. that they are unchangeable, and incapable of becoming the opposite of what they are? Not a few have held that view even regarding the holy angels, and certain heretics also regarding souls, which they call spiritual natures. In the first place, then, let us see what reason itself can discover respecting sun, moon, and stars,—whether the opinion, entertained by some, of their unchangeableness be correct,—and let the declarations of holy Scripture, as far as possible, be first adduced. For Job appears to assert that not only may the stars be subject to sin, but even that they are actually not clean from the contagion of it. The following are his words: “The stars also are not clean in Thy sight.”[132] Nor is this to be understood of the splendour of their physical substance, as if one were to say, for example, of a garment, that it is not clean; for if such were the meaning, then the accusation of a want of cleanness in the splendour of their bodily substance would imply an injurious reflection upon their Creator. For if they are unable, through their own diligent efforts, either to acquire for themselves a body of greater brightness, or through their sloth to make the one they have less pure, how should they incur censure for being stars that are not clean, if they receive no praise because they are so? 3. But to arrive at a clearer understanding on these matters, we ought first to inquire after this point, whether it is allowable to suppose that they are living and rational beings; then, in the next place, whether their souls came into existence at the same time with their bodies, or seem to be anterior to them; and also whether, after the end of the world, we are to understand that they are to be released from their bodies; and whether, as we cease to live, so they also will cease from illuminating the world. Although this inquiry may seem to be somewhat bold, yet, as we are incited by the desire of ascertaining the truth as far as possible, there seems no absurdity in attempting an investigation of the subject agreeably to the grace of the Holy Spirit.