You see it takes more than belief. It takes more than faith to really please God. He says it takes faith that results in loving others. Religion without love doesn't matter. It is not enough to say "I believe". What matters is how I love God and how I love other people, that is the Great Commandment.
6And without faith it is impossible to please him, for whoever would draw
near to God(I) must believe that he exists and that he rewards those who seek him.