He rose to the rank of Professor of Liturgics and Theology. He was the author of multiple books in the field of liturgics. He is a musician, theologian, and scholar of liturgics. It encompasses every area of rabbinic literature&colon; exegesis, homiletics, casuistry, Kabbalah, liturgics, and literary history. His feast day is April 28 (Eastern Orthodox liturgics). In the Eastern Orthodox liturgics, his feast falls on January 9. He taught pastoral theology and liturgics. From 1981 until 2008, he was the instructor of liturgics at the Balamand Seminary. Liturgics scholars typically specialize in a single approach drawn from another scholarly field.