The author, who travels and works between the United States, Korea, and five African countries, was unable to stay in any place for more than a month, so he felt sorry for the lack of opportunities to publicize his ministry and testify. This book testifies to the story of the author's experience of God accomplishing work through faith while searching for God with all his heart in the field of ministry. In particular, the author records the time he wandered after receiving God's calling and the process of discovering his mission. We are exalting God who works through the weak. The author's testimony of living a life like a march of faith crossing the Jordan River allows readers to experience crossing onto dry land.