There is nothing new under the sun. From the beginning, churches and believers have struggled to make an impact. This will never change. It is the nature of the church's calling and the work that lay before us to utterly depend upon God. But to encourage us along the way, the Holy Spirit inspired the book of Acts and the New Testament letters. These Scriptures paint a vivid picture of how a church of impact functions. More than this, they outline some core principles that, along with God's power and favor, promise to deepen our impact in God's world.