The name Greek Orthodox Church (Greek: Ἑλληνορθόδοξη Ἑκκλησία, Ellinorthódoxi Ekklisía, IPA: [elinorˈθoðoksi ekliˈsia] or Greek Orthodoxy) is a term referring to the body of several Churches within the larger communion of Eastern Orthodox Christianity, whose liturgy is or was traditionally conducted in Koine Greek, the original language of the New Testament, and whose history, traditions, and theology are rooted in the early Church Fathers and the culture of the Byzantine Empire. Greek Orthodox Christianity has also traditionally placed heavy emphasis and awarded high prestige to traditions of Christian monasticism and asceticism, with origins in Early Christianity in the Near East and in Byzantine Anatolia. Today, the most important centres of Christian Orthodox monasticism are Saint Catherine's Monastery in the Sinai Peninsula (Egypt) and Mount Athos in Greek Macedonia (Northern Greece).