James 1:26

There are some who think that they are religious. The problem is that some of these people do not keep a tight rein on their tongue. Those who do such a thing are those whose religion is worthless. The thing is that when they do not watch what they say, they deceive their own heart. This makes me think of the passage in Matthew 15. It is what comes out of your mouth that defiles you. This person may think that their religion is something when in reality, it really is nothing.