I think its evident that for God to create the stars after the earth, he would need to be omnipotent . in order to be omnipotent, he needs the ability to overcome anything. What allows anything to overcome anything? energy. He needs infinite energy because otherwise he might come upon a situation where he lacks the energy to be all powerful. So God has infinite energy. All the energy God has, is of God because otherwise it would be infinite in its own right and therefore be something "of more power" that separately exists from God. Further, it would be something that God depends on that is seperate from himself and therefore would make God not the highest thing worthy of worship.
I think the problem I have here is again with your definition of "infinite".
As far as I understand it and normally see it defined, Infinite is a term of measure to describe something in its particular context that is unmeasurable. Pulled from an online dictionary -
1: extending indefinitely : endless <infinite space>
2: immeasurably or inconceivably great or extensive : inexhaustible <infinite patience>
3: subject to no limitation or external determination
4 a: extending beyond, lying beyond, or being greater than any preassigned finite value however large.
Something finite can be measured, has a limit. Something infinite cannot be measured or limited. Yet that doesnt mean that the something that is finite is part of, connected, related necessarily to the same something that is infinite.
"Infinite" is not equal to "All"
Therefore God must himself BE infinite energy. everything in our universe is a form of energy. If there is an infinite set of energy out there, how can we really be "separate" from that set if we are all energy?
I wouldn't agree with that because it seems to be saying that God must be all energy, and anything else that is also considered "energy" must be part of God. Rather, I would say God has an unlimited energy source available to him, and using that energy he was able to create a separate, but finite something that you could probably refer to as "energy" if you wanted. Yes it would be from God, but not necessarily part of him.
If God is not infinite he cannot be omnipotent. We are not even at the point where we ought to cite biblical referrence for the explicit claims concerning God's infinity.
According to YOUR definition of 'infinite/infinity' and 'omnipotent' maybe. My definition is different.
But your argument originally stated:
"I have argued that the existence of a Judeo-Christian God is not possible on the grounds of the impossibility of an infinite and an omnipotent creature, as well as the impossibility of a being who is the creator of the universe."
The Bible is typically the source that is used to define who/what the "Judeo-Christian God" is, so any reference to him being 'infinite/infinity' and 'omnipotent' has to agree with the Bibles description. (Incidentally, I would point out those specific terms are not found in the Bible, at least in respect to the context of the discussion). And I would submit that the Bible's description of God's 'omnipotence' is merely referring to his having unlimited power/force/ability/etc to overcome any obstacles to the fulfillment of his purpose. It does NOT mean that he is everything, or even can do or does everything.
So ya, with respect to the Judeo-Christian God, you do need to cite the Biblical references to support your definitions, otherwise they don't apply.