A timeless being cannot create

[Belacqua]

A creation involves a change in space and time.

I wonder if this is so...

If there is no space and time yet, then there can be no change in space and time. So creation doesn't change space and time -- it makes space and time. 

I don't think it makes sense to imagine a big blank space hanging around in time waiting for creation, and then changing. There was no blank space and no hanging-around time.

mcc1789, I don't know if you want to put in a lot of time on this. I wouldn't blame you if you didn't. But all these questions have been worked on for a long time, and there are very involved and careful answers. You can be sure all the obvious questions ["if everything has a cause, then what caused god?"] have serious answers, though surprisingly few people have bothered to look into them. I think you'll find in fact that a lot of people prefer to mock the whole issue rather than learn anything at all. 

If you go to this site and start clicking links, it will give a taste of how careful explanations have been offered. 

http://www.newadvent.org/summa/1044.htm#article1

I am NOT saying they are right or wrong. Nor am I saying that I understand much of it.