An infinite God would transcend gender, and Satan probably wouldn't have much use for it. So, depending on how they manifest at the time, it could be slash, het, femslash, or none of the above. Pick your preference!

Jesus/Judas, on the other hand, tends to be slashy (unless you're reading Innocent Bird). Also Jesus/Buddha (thanks to Saint Young Men for turning me on to that one).

Mmm, sacrelige. :3