HKB
are planned by Divine Wisdom. In reference to these things God's will is said to be reasonable (rationalis): though regarded in itself it should rather be called their type (ratio).
Reply Obj. 2: God the Son was not made by God, but was naturally born of God. Consequently He is not subject to Divine providence or to the eternal law: but rather is Himself the eternal law by a kind of appropriation, as Augustine explains (De Vera Relig. xxxi). But He is said to be subject to the Father by reason of His human nature, in respect of which also the Father is said to be greater than He.
The third objection we grant, because it deals with those necessary things that are created.
Reply Obj. 4: As the Philosopher says (Metaph. v, text. 6), some necessary things have a cause of their necessity: and thus they derive from something else the fact that they cannot be otherwise. And this is in itself a most effective restraint; for whatever is restrained, is said to be restrained in so far as it cannot do otherwise than it is allowed to.
FIFTH ARTICLE [I-II, Q. 93, Art. 5]
Whether Natural Contingents Are Subject to the Eternal Law?
Objection 1: It would seem that natural contingents are not subject to the eternal law. Because promulgation is essential to law, as stated above (Q. 90, A. 4). But a law cannot be promulgated except to rational creatures, to whom it is possible to make an announcement. Therefore none but rational creatures are subject to the eternal law; and consequently natural contingents are not.
Obj. 2: Further, "Whatever obeys reason partakes somewhat of reason," as stated in Ethic. i. But the eternal law is the supreme type, as stated above (A. 1). Since then natural contingents do not partake of reason in any way, but are altogether void of reason, it seems that they are not subject to the eternal law.
Obj. 3: Further, the eternal law is most efficient. But in natural contingents defects occur. Therefore they are not subject to the eternal law.
On the contrary, It is written (Prov. 8:29): "When He compassed the sea with its bounds, and set a law to the waters, that they should not pass their limits."
I answer that, We must speak otherwise of the law of man, than of the eternal law which is the law of God. For the law of man extends only to rational creatures subject to man. The reason of this is because law directs the actions of those that are subject to the government of someone: wherefore, properly speaking, none imposes a law on his own actions. Now whatever is done regarding the use of irrational things subject to man, is done by the act of man himself moving those things, for these irrational creatures do not move themselves, but are moved by others, as stated above (Q. 1, A. 2). Consequently man cannot impose laws on irrational beings, however much they may be subject to him. But he can impose laws on rational beings subject to him, in so far as by his command or pronouncement of any kind, he imprints on their minds a rule which is a principle of action.
Now just as man, by such pronouncement, impresses a kind of inward principle of action on the man that is subject to him, so God imprints on the whole of nature the principles of its proper actions. And so, in this way, God is said to command the whole of nature, according to Ps. 148:6: "He hath made a decree, and it shall not pass away." And thus all actions and movements of the whole of nature are subject to the eternal law. Consequently irrational creatures are subject to the eternal law, through being moved by Divine providence; but not, as rational creatures are, through understanding the Divine commandment.