Of what is the Divine Nature of God comprised?
Matter and energy are created things, but God is the only uncreated thing. Matter and energy are finite and limited and imperfect, but God is infinite and unlimited and perfect. God is not made of matter or energy.
God is not made of the same substance as a soul or an Angel, nor is He made of any kind of spiritual substance whatsoever. For souls and Angels are created things, but God is uncreated. Also, spiritual substances, like material substances, are finite and limited and imperfect, whereas God is infinite and unlimited and perfect. The soul is confined to the body during life. Angels can be confined to particular tasks, or prevented from exercising certain abilities. God cannot be made of spiritual substance, for then He would be finite and limited and able to be confined.
God is not made of anything even similar to matter or energy or spiritual substance. For although Creation is like God, God is not like Creation. God is unique, and He is separate from, and far above, all Creation.
God is truly and absolutely simple.
God is entirely One. God is not divided into parts.
God is not a thing which acts at some times and refrains from acting at other times.
If God were a thing which acts, He would be divided between substance (what a thing is) and act (what a thing does). And then God would not be truly and absolutely One.
God is not divided into the qualities that God possesses versus the use of those qualities by God. God is not divided into who God is and what God does. God-is-good and God-does-good are absolutely the same in God. In God, being and doing are exactly the same, for God is One. All that God is and all that God does is One.
In God, being is doing and doing is being. God is love because the Act that is God is properly described as Love itself. And the Act of Love that is God is Eternal.
All that God is/does is One Divine Eternal Act. The One Divine Eternal Act is Existence, Love, Mercy, Justice, Willing, Knowing, Creating, Eternity, Power, and whatever other true descriptive terms our limited and imperfect human language might express. God is One Divine Eternal Act and nothing else.
God is Three Divine Persons as One Divine Being.
How can God be Three, since God is so thoroughly One? The One Divine Eternal Act is the Act of Being the Father, and of Being the Son, and of Being the Spirit. The Father-Son-Spirit is One Divine Eternal Act. When a human person does one thing, only one thing is done. But the One Divine Eternal Act accomplishes All in One Act. The Act of the Father Existing, and the Act of the Son proceeding from the Father, and the Act of the Spirit proceeding from the Father and the Son, is absolutely and entirely One Divine Eternal Act.
The above text is taken from my book, New Insights into the Deposit of Faith.
Ronald L. Conte Jr.
Roman Catholic theologian and Bible translator