God said to Moses, “I am who I am.” And he said, “Say this to the people of Israel, ‘I am has sent me to you.’” – Exodus 3:14
Q. 7. What is God?
A. God is a Spirit, in and of himself infinite in being, glory, blessedness, and perfection; all-sufficient, eternal, unchangeable, incomprehensible, everywhere present, almighty, knowing all things, most wise, most holy, most just, most merciful and gracious, longsuffering, and abundant in goodness and truth.
To ponder the infinite nature of God’s being is truly mind boggling. We are finite humans and cannot fathom what it means for God to not be finite. I remember before I was a Christian one of the things I struggled with was the infinite nature of God. Where did he come from, how did he come about to be? His state of being God has always been and He has never been more or less of the God that He is right now. There is no way to describe or define the infinite nature of God. Just like how God is the Father from whom every Father gets its name, He is the being from which every created thing gets it being (Ephesians 3:14-15).
What a blessed thing that we trust in an infinite God. We don’t trust finite man or any created thing, but our trust is in the infinite One who not only has heaven and earth at his disposal, but is the creator of heaven and earth. The fact that God is infinite should motivate us in our pursuit of knowledge of Him since we can never exhaust the knowledge of who He is. God’s infinite nature is summed up by Job’s friend Zophar in Job 11:7-9, “Can you find out the deep things of God? Can you find out the limit of the Almighty? It is higher than heaven —what can you do? Deeper than Sheol—what can you know? Its measure is longer than the earth and broader than the sea.”
We most clearly see the infinite nature of God at the cross. At Calvary the infinite justice and holiness of God is expiated when Jesus lays down His life for his sinners. From before the foundation of the world God ordained that through His Son Jesus He would show His infinite love by propitiating His infinite wrath by Jesus atoning death. Infinite grace and mercy is made available to sinners at the cross by the fact that for those that God has adopted they can never sin their way out of God’s covenant with them. This has only be a brief overview and does not include all of God’s attributes, but for a more thorough analysis please see A.W. Pink’s “Attributes of God” and Wayne Grudem’s “Systematic Theology”.