How do we know faith without works is worthless?

In James 2:14-26, the Apostle James presents a compelling argument on the nature of faith and works. He poses rhetorical questions to demonstrate that a professed faith that does not bear fruit, or good works, is futile and unprofitable. James illustrates this using the analogy of empty words that do not help someone in need, likening it to faith that does not lead to action. Additionally, James points out that even demons have a belief in God but their faith does not result in any righteousness. Therefore, faith that does not express itself through love and good deeds is worthless and dead.