If God’s will is necessarily eternal, then his willing of creation must be eternal as well. However, as long as the cause is present the effect must also be. Therefore, it seems that the universe should be eternal under this view. But, we know from experience that the universe is not eternal, but temporal. Therefore, God’s act of creation must be a temporal act of will.
Other examples can be given. God willed the Red Sea to part for the Israelites to cross. But if he eternally wills everything he wills, then the Red Sea must still be parted, as God is still willing it. But it’s not parted now.
It doesn’t make sense for there to be eternal causes to temporal effects.
Thoughts?
Because God is an immutable being, His duration is called
eternity, which is completely different from the duration of bodily creatures, which is time.
Time is the duration of beings that are mutable both with regard to their existence, and with regard to their operations. It is properly the duration of bodily creatures, and exists only with the bodily world. Without the material world, there will not be time.
There is another kind of duration that belongs to purely spiritual creatures, or the angels, and it is called
eviternity. It is the duration of beings that are immutable with regard to their existence, but mutable with regard to their operations. But let me not talk about angels and eviternity for now, so we could focus on the important distinction between eternity and time. This distinction is important if we want to understand certain things about God and the world.
As I said earlier, time is the duration proper to bodily beings, or creatures that are mutable in their very being or existence. For bodies continue to exist only by receiving existence now, then losing it, and then receiving it again, and so on. Their being is, in a sense, in a successive or continuous flux. Their being itself is in a state of motion, and therefore it is measured, as Aristotle says, according to a before and after. To be sure, a bodily being exists in the “now.” But its being before (now), no longer is. Its being after (now), is not yet. This is what we mean when we say that bodies exist in
time. They continue to exist according to a succession of before and after.
God’s being is entirely different. He does not lose existence, as bodies lose their past being, nor does He acquire new existence, as bodies acquire their future being. Instead God possesses the entirety of His infinite being in His boundless NOW. This kind of duration or permanence in being belongs to God alone, and is called eternity. God, therefore, is in a completely different duration, a duration that may be called “non-time.” For this reason, it would be incorrect to think of eternity as “an infinitely long time,” because it is not time at all.
Now, God’s will and His exercise of causal power are one and the same thing, because God’s Will is the cause of all things. Also, God’s will and His exercise of causal power are one and the same with His Being, because in God there is no distinction between His Perfections (acts of knowing, willing, etc.) and His Being. Therefore, if God’s being is eternal, so is His will, and so is His exercise of causal power. His acts are one with the simplicity of His Being in His eternal NOW.
God willed the creation of the world from His eternal now. But the world, because it is a mutable being, began to exist, and continues to exist only in time. Time, therefore, is on the part of the creature, not on the part of the Creator. God has complete and boundless existence in His eternal NOW; the bodily world acquires its existence continuously and successively in time.
Let me now go to the original post. It said, “If God’s will is necessarily eternal, then his willing of creation must be eternal as well. However, as long as the cause is present the effect must also be.” I agree with the first sentence, but I must qualify the second. It is true that as long as the cause (of being) is present, the effect (existence) must also be -
but the effect does not necessarily need to have the same type of duration as the cause! The Cause can be eternal, but the effect can be temporal. Because existence, as a perfection, is received according to the nature of the recipient, or as they say it in Latin, *quoquod recipitur per modum recipientis recipitur. *Therefore the mode of being received by mutable beings is that mode which agrees with their nature as mutable beings, that means, successive existence in time.
I hope this helps.