In this book John Sivalon brings together his passion for mission, his love for the church, his appreciation of contemporary culture, and his vast experience as a leader of Maryknoll missioners into a deeply reflective, inspiring, and profound development of God’s missionary nature and its implications for our ecclesial and missionary life. The author has made an original contribution to the understanding of Missio Dei, the mission we share by God’s amazing grace. This is a truly important book, and one that the readers have to share with others as well.