Apostle Paul wrote, "work out your own salvation, with fear and trembling."
The "work out your own salvation" meant that you are the one who should choose on how you worship God, not a preist, not a rabbi, nor any other religious leader.
However, he didn't leave it at that. The "with fear and trembling" meant that you should seriously consider what God says before you choose your path. An "anything goes" attitude doesn't cut it. The Bible is a pretty good reference on understanding what God requires of us.