They expect a grand plan, to make sense of this often chaotic existence, and for many, it gives them hope that there is a magical afterlife, behind pearly gates (gates meant to keep something in or out by a JUDGE.) Someone should have written a better script, but that is what you get from a mash-up of plagiarized dogma from previous religions written by goat herders who were barely literate. There is hardly anything original in the Bible.