“So when we say that Christians work from a gospel worldview, it does not mean that they are constantly speaking about Christian teaching in their work. Some people think of the gospel as something we are principally to “look at” in our work. This would mean that Christian musicians should play Christian music, Christian writers should write stories about conversion, and Christian businessmen and -women should work for companies that make Christian-themed products and services for Christian customers. Yes, some Christians in those fields would sometimes do well to do those things, but it is a mistake to think that the Christian worldview is operating only when we are doing such overtly Christian activities. Instead, think of the gospel as a set of glasses through which you “look” at everything else in the world. Christian artists, when they do this faithfully, will not be completely beholden either to profit or to naked self-expression; and they will tell the widest variety of stories. Christians in business will see profit as only one of several bottom lines; and they will work passionately for any kind of enterprise that serves the common good. The Christian writer can constantly be showing the destructiveness of making something besides God into the central thing, even without mentioning God directly.”
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Timothy Keller,
Every Good Endeavor: Connecting Your Work to God's Work