Theologians have long referred to this perfection as God’s aseity, from the Latin a se, or “from himself.” The idea is that God’s existence is his essence. All other creatures exist by way of a Creator – they came into being by way of another Being, and therefore their existence is dependent and thus not a part of their essence. They do not have ens per essentiam, that is, being that exists by virtue of its own essence. This can only be said of God for God alone is a se – of Himself.
Paul, in Romans 1:20, tells us that there is something which he refers to as God’s divine nature. That is, there is something unique to God and about God that cannot be said of any other being. There is a Godness to God, what philosophers and theologians would call God’s essence (or an even more fun word to use, His quiddity – the whatness of God). Consider how Paul in Galatians 4:8 says that when we were unbelievers, we “were enslaved to those that by nature are not gods.” You can call yourself a god all you want, but there’s something about your essence and nature that belies the truth.
So what is God’s Godness? Humility pushes us to listen to God to find this answer since God in his transcendent incomprehensibility is infinitely beyond our limited capacity (much less, our fallen capacity) to grasp at knowing God ourselves. Again, quoting Paul, “For what can be known about God is plain to [all humanity]… who by their unrighteousness suppress the truth” (Romans 1 verse 19 and 18, respectively). We need God to speak and speak in such a way that His word not only penetrates our unbelief but also creates within us true belief. And praise God, He is not silent.
As Luke records for us the words of Paul, “The God who made the world and all things in it, since He is Lord of heaven and earth, does not dwell in temples made with hands; neither is He served by human hands, as though He needed anything, since He Himself gives to all life and breath and all things” (Acts 17:24, 25). In other words, what sets God apart from all other beings is his independence. Properly, he is not dependent upon anything else (or anyone else) for his being. That’s the Godness of God. Notice how Paul emphasizes God’s creative power: He made the world and all things and He gives to all life and breath and all things. But God himself, says Paul, does not need anything. His essential independence requires that he is not even in need of his being. He simply is.
Perhaps the clearest expression of this is when God reveals to Moses his own name – a name, by the way, which God has not received from anyone else. This is the name God has Himself chosen and which he’s been pleased to reveal. Thus, it tells us a lot about who and what God is as God knows Himself. In Exodus 3 God reveals himself to Moses as “I Am who I Am.” First, the way in which God discloses this name, out of a burning bush and yet the bush was not being consumed, testifies to the nature of the name. Fire, in order to be, is dependent upon fuel to burn. Not so here. Here is a fire which is burning but is in no need of a bush to burn. The fire, as such, has being independent of the bush. The name then which God reveals from out of the burning bush is tied to this image of independence. “I Am who I Am.” His being is His being and
He does not need anything outside of Himself in order to be.
Theologians have long referred to this perfection as God’s aseity, from the Latin a se, or “from himself.” The idea is that God’s existence is his essence. All other creatures exist by way of a Creator – they came into being by way of another Being, and therefore their existence is dependent and thus not a part of their essence. They do not have ens per essentiam, that is, being that exists by virtue of its own essence. This can only be said of God for God alone is a se – of Himself.
This does not mean, of course, that God caused his own being. There was no moment where God came to be. No, as Francis Turretin writes, “True eternity has been defined by the Scholastics to be ‘the interminable possession of life – complete, perfect, and at once.’”[1] God’s aseity is indistinguishable from his eternality and immutability. He is unchangingly and infinitely and eternally alive! Pure Being and Pure Actuality.