I was just rereading this thread and noted your comments. Take a look at the original Greek of Colossians 1:15-20. Invisible is better rendered as unseen or “that which human eyes are not capable of seeing”. What do you think of that?
"Invisible" in reference to Creation would mean creation ex nihilo:
For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made, [even] his eternal power and Godhead; so that they are without excuse: - Romans 1:20
Who is the image of the invisible God, the firstborn of every creature: For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether [they be] thrones, or dominions, or principalities, or powers: all things were created by him, and for him: And he is before all things, and by him all things consist. And he is the head of the body, the church: who is the beginning, the firstborn from the dead; that in all [things] he might have the preeminence. For it pleased [the Father] that in him should all fulness dwell; And, having made peace through the blood of his cross, by him to reconcile all things unto himself; by him, [I say], whether [they be] things in earth, or things in heaven.– Colossians 1:15-20
Finally, I offer the wisdom of the Jewish Mystics who use the term Ayn Sof when meditating on God The Creator. The word literally means “no thing” – namely, that any word a man uses to describe God reduces his understanding of God to the word he used.
God's Name is I AM.