Explore the second half of the book of Acts, where we see how the multi-ethnic Church grew through missionary journeys across the ancient world. God can do amazing things through ordinary people when He empowers them through His Spirit. The book of Acts shows how God essentially took a group of fisherman and commoners and used them to turn the world upside down (Acts 17:6). God took a Christian-hating murderer and transformed him into history’s greatest Christian evangelist, the author of almost half the books of the New Testament. God used the persecution the Christians endured to help stimulate the incredibly rapid expansion of the fledgling church. God can and does do the same through us—changing our hearts, empowering us by the Holy Spirit, and giving us a passion to spread the good news of salvation through Christ. If we try to accomplish God’s work in the world in our own power, we will fail. Like the disciples in Acts 2, we must faithfully proclaim the gospel, trust God for the results, and devote ourselves “to the apostles’ teaching and to fellowship, to the breaking of bread and to prayer” (Acts 2:42).