Evil and pain exist, so God cannot be all-benevolent.
God cannot make a stone bigger than He can roll, so He cannot be omnipotent.
Gödel's Proof demonstrates that God cannot be omniscient.
Religious madmen always have some silly reason why a Good God would allow pain and suffering. A standard ploy is that God permits it in order that humans may have free-will. But a Good God who was also omnipotent AND all-knowing obviously could create a world free of suffering AND in which humans could have free will (presuming that free will is actually something worth having).
So the apologists for God are just peddling another load of tommy-rot.
The only way out of the problem (for them) is to admit that God is NOT all-powerful AND/OR not all-knowing.
They could weasel out by claiming that, as making a stone bigger than He could move involves a contradiction to the concept of an all-powerful God, it is a reasonable limitation on the power of God that He cannot do something which involves a logical contradiction -- like making a square circle. Then they could claim that a world without suffering involves a logical contradiction.
That would be fine -- if they could explain what the logical contradiction is. Since they have never figured out such a thing, they should not be surprised if some of us distrust their simple-minded notions of deity.
In the spirit of philosophical brotherhood, I will suggest a way that might save their notions of God from logical inanity. I warn you that it involves considerable knowledge of some of the most subtle and advanced areas of modern mathematics. You had better think carefully about the work of Gregory Chaitin, for example.
Perhaps it is logically impossible to predict the optimal history of an infinite universe
a priori -- it would require an Infinite Mind greater than the infinity of
all the orders of mathematical infinity.
So we may all play out our lives over and over in the Mind of God -- with some changes each time -- so that He may ultimately form an asymptotic approximation to the Optimum Universal History.
God need not thank me for my help -- I'm always willing to give a hand to a Deity who tries to make an honest effort.