contradiction. Paul writes that those who build their lives on idols become “futile in their thinking, and their foolish hearts [are] darkened” (Rom. 1:21). The Greek word for futile means unproductive, ineffectual, failing to achieve its purpose. As this example clearly shows, idol-based worldviews do not produce what a philosophy of life is meant to give us—a coherent, logically satisfying worldview that makes sense of all of life.