The Harp is the scholarly journal of Syriac, Oriental, and Ecumenical studies published by the St. Ephrem Ecumenical Research Institute (SEERI) in Kottayam, India. The Harp publishes articles and book reviews from scholars of Eastern Christianity from around the world. The present volume is a Festschrift for Mar Aprem and contains: “The Veneration of the Apostle Thomas in the Church Province of Persis” by J. Tubach, “The Three Crucial Terms in Syriac Theology: Kyana, Qnoma, and Parsopa” by G. Chediath, “Some Comparative Reflections on the Chaldean and Old Constantinopolitan Orders of Vespers” by G. Woolfenden, “The Descent of Mary and the Syriac Commentary on the Diatessaron” by C. Lange, “Moshe bar Kepha and the Christian Communities” by A. M. Saadi, “Bishops of the Church of the East, 1861-1918” by J. F. Coakley, “Christ as Gardener in the Syriac Tradition” by J. Thekeparampil, “Syriac Dialogue-An Example from the Past” by S. P. Brock, and other articles and book reviews dealing with various issues of Syriac and Eastern Christianity.