The only reason God is positioned as both Benevolent and Omnipotent, even if both of these accounts are continually contradicted in the holy texts, in the Judeo Christian religion is so that we have a "reason" to practice the said Religion. You won't be able to throw money at a God who isn't good or doesn't know what the fuck they are actually doing. I also hate the argument that "all the bad things" that happen in this world is the fault of humans. Like care to explain natural disasters or diseases like cancers? Were those man made as well? Were they deserving of a death that they had no hand in?
On paper, the system of some kind of rewards/punishment in the afterlife sounds great, but it easily falls apart the more and more you try to break it down. And that's not even me going into the details of how the bible was made/compiled together like which books and verses was carried over and not. There's just soo much things that points these religion obviously being man made for the sole purpose of control.