I don't believe that he should have been charged with a penalty, because he was just praying which is technically allowed by NFL rules. By punishing him, it breaks the first amendment rights given to the U.S. people. However, it was not flagged on purpose but the ref still should have been more careful. In order to keep this from happening again, praying should be allowed and also celebration after touchdowns. It should not be banned, and there would not be confusion.