As most systematic theologians, Colin Gunton planned to write a Systematic Theology towards the end of his life, a summa of his theological thinking. He did not live to fulfill this task. However, the first volume of this opus magnum existed in a draft form, read by and discussed with eminent colleagues before Colin's premature death. The text of this first volume is here presented in a carefully edited version by two of Colin's closest theological friends, Robert Jenson and Christoph Schwoebel, and one of his former PhD students. They bring academic expertise, deep knowledge of Gunton's theology and accuratesse to their task. This text will be adding much to the understanding of Colin Gunton's theology and legacy.