Re-reading my own post, I see that I erred in phrasing: it is not right to even say that God might be in 'two places at once', as that again makes Him bound to specific locations. So it is better to say, with the Fathers, that He is unbounded/uncircumscribed, filling all things, etc. Any of this language is good, because it all expresses the truth of the unlimitedness of the Almighty, over and against the objections of Mormons or any others who might have a different philosophy whereby God can't do things.
The argument is based in a faulty understanding of matter. Most Christians do not understand their idea of a existence outside of the material world we live in comes from Greek philosophy rather than the Bible. The Greeks had their order of matter upside down. "In the Platonistic hierarchy ....,pure energy would have been at the highest end of material spectrum, with mass the gross characteristic of material, the the lowest end" Accepting that concept is "a fundamental precept ...at the heart of many assumptions about God... God is farthest from gross, imperfect, undesirable matter, and closest to pure spirit or energy"
The truth is the other way around; E=mc2
"...if m units of mass could be made to disappear, the units of energy that would be liberated would be m times the speed of light squared! In actual numbers, using the speed of light in a vacuum...it would means that it would require nearly 900 quintillion ...units of energy to be equivalent to just one unit of mass!"
If we were to take jar of light it would have less stored energy than a jar of the same size of natural gas, which would have less than a jar of liquid gasoline which would have less than and equal size of a lump of coal. The denser the matter the more stored energy it has. There is no such thing as pure energy, all energy has a source of matter.
To create one must have real power and real power requires energy. A god made of essentially nothing has no power, no power at all thus it would limit his ability create.
In the real universe made up of matter, God's physical body of matter gives him this real power.
In the Bible God the Father sits upon a throne with Jesus sitting at his right hand, to say that God is in all places at one time all the time is to deny that this throne exist.
Jesus said on the third day I shall be perfected, meaning he would receive his resurrected body.
"Jesus answered and said unto them, Destroy this temple, and in three days I will raise it up..... he spake of the temple of his body." John 2
"And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God. And God shall wipe away all tears from their eyes..." Rev 21
God the Father also has a tabernacle or temple and he will dwell with us, in place and time.