James 2:17-20

So you see, faith by itself isn’t enough. Unless it produces good deeds, it is dead and useless. Now someone may argue, “Some people have faith; others have good deeds.” But I say, “How can you show me your faith if you don’t have good deeds? I will show you my faith by my good deeds.” You say you have faith, for you believe that there is one God. Good for you! Even the demons believe this, and they tremble in terror. How foolish! Can’t you see that faith without good deeds is useless?