One of God’s giants was John Wesley. During a single week in July 1757, Wesley preached ten times in eight different towns, traveling by horseback. He wrote in his journal, “I do indeed live by preaching!”6 He had the right idea, the biblical idea, for true servants of God are nourished by serving. “My food,” said Jesus, “is to do the will of him who sent me and to finish his work” (John 4:34). Perhaps the hardest thing about being a slave was the impossibility of saying “no” to your master. Slaves