Saint Catherine's Monastery is the world's oldest continuously inhabited monastery, with a history extending back over 1700 years. In the mid-nineteenth century, it was at this monastery that what became known as codex Sinaiticus was discovered. It is the only known complete copy of the Greek New Testament in uncial script. Although this codex is now kept in the British Museum, St. Catherine’s library contains manuscripts famous throughout the world for their antiquity and for the range of languages that appear in the collection. Father Justin will show five manuscripts in particular that have been studied by scholars within the last year, as a way of demonstrating the continuing significance of the Sinai manuscripts for our understanding of the Scriptures and of the heritage of the Church.