Planting and growing Reformed, evangelical churches in hostile secular cities has been done before . . . by the apostle Paul. Closer examination of his seminal training in Acts 20 reveals his “Gospel DNA”—electrifying theological principles for multiplying biblical ministries in a pagan world, illustrated from God’s grace in a diversity of London contexts. If you want to know how to penetrate postmodern cynicism, plant with limited resources, prepare mission-hearted leaders, or prioritize with confidence, come and learn from the legendary apostle Paul.