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 contains several essays concerning the beginning of SEERI and other articles, such as: “The Mar Thoma Church and the Syriac Christian Patrimony” by Z. Theophilos, “A Treasure House of Rare Documents” by R. Cordier, “A Way for Christian Unity” by V. C. Samuel, “The Epithet ‘Ecumenical’” by J. Tholanikunnel, “A Christian Tradition which is neither Latin nor Greek” by B. Paul, “A Hymn of St. Ephrem on the Eucharist” by S. P. Brock, “Relevance of Syriac Studies” by S. P. Brock, “Qussaya and Rukkaka” by J. B. Segal, “Early Christianity in Mesopotamia” by W. Hage, “Aspects of the Persecution of Christians in the Sassanian Empire during the Reign of Shapur II” by W. Schwaigert, “St. Ephrem’s Understanding of Spiritual Progress” by K. E. McVey, and other articles and book reviews dealing with various issues of Syriac and Eastern Christianity.