Complex sentence: He devoted twenty-seven years of his life to training men for pastoral service, using A.A. Hodge's "Outlines of Theology", which presents theological topics in question and answer format, to stimulate discussion in the classroom.
Split into simpler sentences: He devoted twenty-seven years of his life to training men for pastoral service. He used A.A. Hodge's "Outlines of Theology", which presents theological topics in question and answer format, to stimulate discussion in the classroom.