River of God is an introduction to world missions aimed at undergraduate students. However, the readers will soon discover that the book is rich in its content far beyond the editors' original plan. It serves as a reader for people with various levels of missiological interest and competence and deals with cutting-edge issues in missions. This book introduces a new paradigm, Kingdom Missiology, which builds on shalom in the Old Testament and as Jesus applied to the Kingdom of God in the New Testament. The first half of the book looks at Kingdom Missiology from the biblical, historical, and cultural dimensions. The second half of the book describes helpful strategies in the implementation of this paradigm. The importance of urban ministry is woven throughout the book.