The idea of God likely started with efforts by early people to explain existence.
Over time, as thought on that and other subjects became more complicated, a body of attitudes and traditions called theology arose.
It really does seem a bit silly to carry on the arguments into the 21st century.
After all, if he or she is indifferent to our plight, then it couldn't matter whether we give a moment's thought to the matter.
But equally, if he or she is not indifferent but just works in unknowable ways, as Christians often say after tragedy, it still couldn't matter whether we give a moment's thought. Unknowable ways are just that, unknowable.
Good and evil, of course, are human conceptions entirely. They cannot have any meaningful application to an indifferent or an unknowable being.
