The Presbyterian church has always been a missionary church, desiring to bring the gospel to the tribes, tongues, people and nations around the world. And over the past two hundred years, our leading scholars have thought hard and written well on this topic. Ashbel Green wrote Presbyterian Missions in 1838, and Thomas Cary Johnson wrote Introduction to Christian Missions in 1909. Even though you probably won't agree with everything you read in these books, I have no doubt that reading them will give you a fresh perspective on your own ministry. The discussion of first principles and missionary motivations, and the stories of God's work in America and around the globe, will strengthen your faith and spur you on to love and good deeds.