Codex Bezae is one of the most important primary sources in New Testament scholarship. Since its rediscovery in the sixteenth century it has continued to fascinate scholars, who have remained intrigued by the riddles of its general appearance and textual characteristics. David Parker makes the first comprehensive investigation of the manuscript for over a century, and sets out to uncover the story behind this most enigmatic of manuscripts. By studying the characteristics of Codex Bezae, both physical and textual, and by comparing its Greek and Latin texts, the author aims to show how a bilingual tradition developed, and thus to discover as much as possible about its earliest stages, which leads to an important new theory about its origins. In a final section, the general character of the text is assessed with a view to what this can tell us of the earliest traditions about Jesus.