18 But someone will say, “You have faith and I have works.” Show me your faith apart from your works, and I will show you my faith by my works. 19 You believe that God is one; you do well. Even the demons believe—and shudder! 20 Do you want to be shown, you foolish person, that faith apart from works is useless? 21 Was not Abraham our father justified by works when he offered up his son Isaac on the altar? 22 You see that faith was active along with his works, and faith was completed by his works; 23 and the Scripture was fulfilled that says, “Abraham believed God, and it was counted to him as righteousness”—and he was called a friend of God. 24 You see that a person is justified by works and not by faith alone. 25 And in the same way was not also a Rahab the prostitute justified by works when she received the messengers and sent them out by another way? 26 For as the body apart from the spirit is dead, so also faith apart from works is dead.
–James 2:18-26 (ESV)

The world tries to teach me that faith is personal and spiritual, while the daily grind is “real” and has nothing to do with faith. In this passage, James shows the futility of “just believing.” Even Satan’s crowd believes that God exists!

I must do a lot better than “just believing” and know deeply that my faith and my daily grind are tightly connected, not separate spheres of spirituality and reality. There is only one true reality. I am what I believe, and this must dictate what I do.