Ok. If God is timeless, spaceless, and immaterial, you do realize that each of these quantities has dimension zero, right?
Theists have long claimed against science with the something from nothing argument. Well, a spaceless, timeless, and immaterial God is actually nothing. So, a nothing God cannot produce a something universe.
Now, if God was multi-dimensional--like existing in 11 dimensional space with mass and time also existing also in 11 dimensions or insert whatever N>3 you like for the dimensions, then, that kind of God would be capable of producing our universe because then that is something from something else. But, that isn't the claim, now, is it?