FIFTH ARTICLE [I, Q. 19, Art. 5]

Whether Any Cause Can Be Assigned to the Divine Will?

Objection 1: It seems that some cause can be assigned to the divine

will. For Augustine says (Qq. lxxxiii, 46): "Who would venture to say

that God made all things irrationally?" But to a voluntary agent, what

is the reason of operating, is the cause of willing. Therefore the

will of God has some cause.

Obj. 2: Further, in things made by one who wills to make them, and

whose will is influenced by no cause, there can be no cause assigned

except by the will of him who wills. But the will of God is the cause

of all things, as has been already shown (A. 4). If, then, there is

no cause of His will, we cannot seek in any natural things any cause,

except the divine will alone. Thus all science would be in vain,

since science seeks to assign causes to effects. This seems

inadmissible, and therefore we must assign some cause to the divine

will.

Obj. 3: Further, what is done by the willer, on account of no cause,

depends simply on his will. If, therefore, the will of God has no

cause, it follows that all things made depend simply on His will, and

have no other cause. But this also is not admissible.

_On the contrary,_ Augustine says (Qq. lxxxiii, 28): "Every efficient

cause is greater than the thing effected." But nothing is greater than

the will of God. We must not then seek for a cause of it.

_I answer that,_ In no wise has the will of God a cause. In proof of

which we must consider that, since the will follows from the

intellect, there is cause of the will in the person who wills, in the

same way as there is a cause of the understanding, in the person that

understands. The case with the understanding is this: that if the

premiss and its conclusion are understood separately from each other,

the understanding the premiss is the cause that the conclusion is

known. If the understanding perceive the conclusion in the premiss

itself, apprehending both the one and the other at the same glance, in

this case the knowing of the conclusion would not be caused by

understanding the premisses, since a thing cannot be its own cause;

and yet, it would be true that the thinker would understand the

premisses to be the cause of the conclusion. It is the same with the

will, with respect to which the end stands in the same relation to the

means to the end, as do the premisses to the conclusion with regard to

the understanding.

Hence, if anyone in one act wills an end, and in another act the means

to that end, his willing the end will be the cause of his willing the

means. This cannot be the case if in one act he wills both end and

means; for a thing cannot be its own cause. Yet it will be true to say

that he wills to order to the end the means to the end. Now as God by

one act understands all things in His essence, so by one act He wills

all things in His goodness. Hence, as in God to understand the cause

is not the cause of His understanding the effect, for He understands

the effect in the cause, so, in Him, to will an end is not the cause

of His willing the means, yet He wills the ordering of the means to

the end. Therefore, He wills this to be as means to that; but does not

will this on account of that.

Reply Obj. 1: The will of God is reasonable, not because anything is

to God a cause of willing, but in so far as He wills one thing to be

on account of another.

Reply Obj. 2: Since God wills effects to proceed from definite

causes, for the preservation of order in the universe, it is not

unreasonable to seek for causes secondary to the divine will. It

would, however, be unreasonable to do so, if such were considered as

primary, and not as dependent on the will of God. In this sense

Augustine says (De Trin. iii, 2): "Philosophers in their vanity have

thought fit to attribute contingent effects to other causes, being

utterly unable to perceive the cause that is shown above all others,

the will of God."

Reply Obj. 3: Since God wills effects to come from causes, all

effects that presuppose some other effect do not depend solely on the

will of God, but on something else besides: but the first effect

depends on the divine will alone. Thus, for example, we may say that

God willed man to have hands to serve his intellect by their work,

and intellect, that he might be man; and willed him to be man that he

might enjoy Him, or for the completion of the universe. But this

cannot be reduced to other created secondary ends. Hence such things

depend on the simple will of God; but the others on the order of

other causes.

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Summa Theologica, Part I (Prima Pars) From the Complete American Edition · 第 156 / 722 题