If God is of a "divine substance" where he is infinitely perfect, there is always the age-old question of why there is evil, pain, and suffering in this world from malaria, droughts, starvation, slavery, and so much more.
There is also no evidence or proof of God's existence. We require evidence for almost everything else, from medicines to criminal charges.
And if God is "divine," why does he not show us beyond a shadow of a doubt that he exists. There is the argument for faith, belief, and free will but if God is "divine" and all-knowing- do we really have free will?