When I saw the question posed for this forum and your response, I thought of the same verses Pilgrim quoted above from the apostle Paul:
Colossians 1:15-17
New International Version
The Supremacy of the Son of God
15 The Son is the image of the invisible God, the firstborn over all creation. 16 For in him all things were created: things in heaven and on earth, visible and invisible, whether thrones or powers or rulers or authorities; all things have been created through him and for him. 17
He is before all things, and in him all things hold together.
I like the NIV translation of verse 17 especially that in Christ "all things hold together" verses the KJV "all things consist". God is spirit and the source of life that transcends this physical universe that He created, which is a representation of God's "attributes" and "eternal power" (Rom. 1: 20).
To try and grasp the infinite (God) with our finite minds is an exercise in futility from a scientific perspective. God is the Alpha and Omega--He is eternal. We are not, nor is the cosmos. For example, think about infinity into the past--it just doesn't make sense and goes beyond scientific methodology because there has to be a beginning point. But. whatever that beginning is, what caused that and so on into eternity past as the argument goes.
When God revealed himself in the Old Testament, He described Himself as YHWH (the Lord), perhaps the "Eternal" is a better English translation like James Moffatt used. And, look at how God answered Moses before the Exodus out of Egypt:
Exodus 3:13-14
New International Version
13 Moses said to God, “Suppose I go to the Israelites and say to them, ‘The God of your fathers has sent me to you,’ and they ask me, ‘What is his name?’ Then what shall I tell them?”
14 God said to Moses, “
I am who I am.[
a] This is what you are to say to the Israelites: ‘
I am has sent me to you.’”
God named Himself as "I am." He has and always will exist--that's eternity. Time, space, and everything else that makes up our lives and this physical universe were created by God and they "hold together" and "consist" in Him. All that we perceive is made possible by the source of life--the Eternal God Almighty.