God has given plenty of evidence/proof
So, the natural follow-up question would be "Why don't people bother to find the God-provided evidence/proof?"
What evidence? It's not anything to do with evolution and the natural world. Because if it was that would make god responsible for all the bad things in nature.
So where is the proof? It's written he did a lot of telling people what to do at the beginning of the bible stories. The problem is most of those have been proven to be untrue. Creation is a myth, Garden of Eden, Cain and Abel, simply because Humans are 500,000years old and spent most of that time as Hunter-Gatherers in Africa. A few left Africa and started to populate the world. Evolution changed the appearance of them to suit their environment.
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According to the bible, it states the Earth is 6,000 years old. Giving a timeline that can be traced. Wrong the Earth is 4.5 billion years old.
More stories that have later been proven to be myths. Sodom and Gomorrah, Walls of Jericho, Plagues, Ark of the Covenant, Flood, etc.
Even so, if he was bothered to reveal himself to the Early Jews, why is he so quiet now? On the evidence, one can only conclude that like every other religion he's made up.