This article is a reprint of the original “Idols of the Heart and ‘Vanity Fair.'” Summary The article discusses the ways in which sin is more than just our bad behavior. In particular, our bad behavior arises through three, interlocking sources: flesh, world, and devil. Despite analyzing the origin of sin, the article is not meant to lead us on an idol hunt, whether in ourselves or in others. Given that flesh is only one source of sin, peering inside of ourselves to find our sin and ignoring our environment is shortsighted, especially since it is how we interact with our environment that shows our orientation.