I haven't taken the time to read all the posts so hope i'm not repeating anything.....

but... God doesn't just give you life. There are plenty of rewards to worshiping God. Anything you give to God you will be blessed ten fold. The more you bless God the more He will bless you. but also the devil will try to take it away to make you not believe in God. (and the devil gets his way a lot because people these days don't have enough faith)