How then can these things be gods, seeing that they need one another's assistance? Or how is it proper to ask anything of them when they too ask help for themselves one from another? For if it is an admitted truth about God that He stands in need of nothing, but is self-sufficient and self-contained, and that in Him all things have their being, and that He ministers to all rather than they to Him, how is it right to proclaim as gods the sun and moon and other parts of creation, which are of no such kind, but which even stand in need of one another's help? 2. But, perhaps, if divided and taken by themselves, our opponents themselves will admit that they are dependent, the demonstration being an ocular one. But they will combine all together, as constituting a single body, and will say that the whole is God. For the whole once put together, they will no longer need external help, but the whole will be sufficient for itself and independent in all respects; so at least the would-be philosophers will tell us, only to be refuted here once more. 3. Now this argument, not one whit less than those previously dealt with, will demonstrate their impiety coupled with great ignorance. For if the combination of the parts makes up the whole, and the whole is combined out of the parts, then the whole consists of the parts, and each of them is a portion of the whole. But this is very far removed from the conception of God. For God is a whole and not a number of parts, and does not consist of diverse elements, but is Himself the Maker of the system of the universe. For see what impiety they utter against the Deity when they say this. For if He consists of parts, certainly it will follow that He is unlike Himself, and made up of unlike parts. For if He is sun, He is not moon, and if He is moon, He is not earth, and if He is earth, He cannot be sea: and so on, taking the parts one by one, one may discover the absurdity of this theory of theirs. 4. But the following point, drawn from the observation of our human body, is enough to refute them. For just as the eye is not the sense of hearing, nor is the latter a hand: nor is the belly the breast, nor again is the neck a foot, but each of these has its own function, and a single body is composed of these distinct parts—having its parts combined for use, but destined to be divided in course of time when nature, that brought them together, shall divide them at the will of God, Who so ordered it—thus (but may He that is above pardon the argument), if they combine the parts of creation into one body and proclaim it God, it follows, firstly, that He is unlike Himself, as shown above; secondly, that He is destined to be divided again, in accordance with the natural tendency of the parts to separation.
29. The balance of powers in Nature shows that it is not God, either collectively, or in parts.
And in yet another way one may refute their godlessness by the light of truth. For if God is incorporeal and invisible and intangible by nature, how do they imagine God to be a body, and worship with divine honour things which we both see with our eyes and touch with our hands? 2. And again, if what is said of God hold true, namely, that He is almighty, and that while nothing has power over Him, He has power and rule over all, how can they who deify creation fail to see that it does not satisfy this definition of God? For when the sun is under the earth, the earth's shadow makes his light invisible, while by day the sun hides the moon by the brilliancy of his light. And hail ofttimes injures the fruits of the earth, while fire is put out if an overflow of water take place. And spring makes winter give place, while summer will not suffer spring to outstay its proper limits, and it in its turn is forbidden by autumn to outstep its own season. 3. If then they were gods, they ought not to be defeated and obscured by one another, but always to co-exist, and to discharge their respective functions simultaneously. Both by night and by day the sun and the moon and the rest of the band of stars ought to shine equally together, and give their light to all, so that all things might be illumined by them. Spring and summer and autumn and winter ought to go on without alteration, and together. The sea ought to mingle with the springs, and furnish their drink to man in common. Calms and windy blasts ought to take place at the same time. Fire and water together ought to furnish the same service to man. For no one would take any hurt from them, if they are gods, as our opponents say, and do nothing for hurt, but rather all things for good. 4. But if none of these things are possible, because of their mutual incompatibility, how does it remain possible to give to these things, mutually incompatible and at strife, and unable to combine, the name of gods, or to worship them with the honours due to God? How could things naturally discordant give peace to others for their prayers, and become to them authors of concord? It is not then likely that the sun or the moon, or any other part of creation, still less statues in stone, gold, or other material, or the Zeus, Apollo, and the rest, who are the subject of the poet's fables, are true gods: this our argument has shown. But some of these are parts of creation, others have no life, others have been mere mortal men. Therefore their worship and deification is no part of religion, but the bringing in of godlessness and of all impiety, and a sign of a wide departure from the knowledge of the one true God, namely the Father of Christ. 5. Since then this is thus proved, and the idolatry of the Greeks is shown to be full of all ungodliness, and that its introduction has been not for the good, but for the ruin, of human life—come now, as our argument promised at the outset, let us, after having confuted error, travel the way of truth, and behold the Leader and Artificer of the Universe, the Word of the Father, in order that through Him we may apprehend the Father, and that the Greeks may know how far they have separated themselves from the truth.
Source: Against the Heathen (New Advent)