@thor if god had gender, it would mean, we have many gods with all the possible genders :) the only reason to have a gender is to reproduce, and thing is, there are many species that reproduce without genders, and those that can change their gender, and those that have both genders in one creature.
I'd say, god does not reproduce with sex, it is omnigenderous. It is not one creature, but rather something common between creatures that believe in it.