In 2 Corinthians 6:14-18, Paul warns the Corinthian church against allowing the values and narratives of the world to shape their theology. Sadly, this struggle remains as relevant today as it was then. As we study this passage, we see how Paul’s call to avoid mixing the world with the church echoes throughout Scripture, why this matters in God’s economy, and where believers are most vulnerable to allowing contrary worldviews to creep in.