Professor Saarinen's scholarly work navigates the complex terrains of ecumenism and historical thought. In ecumenism, his focus lies primarily on the bilateral dialogues of Lutheran churches, with regular updates on ongoing Lutheran-Orthodox dialogues. His historical scholarship delves into late medieval, Renaissance, and Reformation thought, with recent work exploring concepts of will, freedom, and self-control within "philosophical psychology." Additionally, he examines the theological applications of gift exchange, gratitude, and hospitality, often finding intersections between historical topics and contemporary ecumenical discourse.
Focusing on theological exegesis, this volume delves into the letters of 1st and 2nd Timothy, Titus, Philemon, and Jude, providing insightful analysis and interpretation. It aims to illuminate the theological significance and context of these texts, making it a valuable resource for those studying the New Testament and its implications for faith and practice.