Mandaean Book of John

The chapters that give the book its name tell John's story as the Mandaeans hold it. His birth is heralded by a star over Jerusalem and by portents that alarm the priests; the child is protected, raised in purity, and grows into Iahia Iuhana the baptiser, who takes his stand at the Jordan and administers the baptism of living water that is the Mandaeans' own central rite. The discourses put long first-person proclamations in his mouth: the fisher of souls who casts his net for the children of light, the good shepherd, the physician whose medicine is the word, images that echo and invert the language familiar from the Christian gospels, for the book's relation to Christianity is openly polemical.

In its most discussed scene, Jesus comes to John asking for baptism, and John at first refuses him; the baptism proceeds only on instruction from the world of light, and the tradition marks Jesus as one who altered and betrayed the baptiser's religion. Scholarship reads these narratives not as independent history of the first century but as the self-definition of a baptising community distinguishing itself from an ascendant Christianity, exalting John as the true prophet against the rival's founder. Around the John material stand discourses of other figures, Anush Uthra the heavenly envoy among them, and sustained moral preaching on the soul trapped in the body, warned, admonished and called upward.

The Book of John as transmitted is a compilation: some seventy six chapters of varied genre, verse homily and prose narrative, gathered under a title that reflects its most celebrated contents rather than a single subject. Internal evidence places the redaction in the early Islamic period, since the text knows the Arab conquest and the new order it brought, while much of the material it arranges is older, drawn from the same late antique world that produced the community's other great books; the Mandaic language and the distinctive script are shared with the Ginza Rabba, and the manuscripts descend through the same priestly copying tradition with its chains of named scribes.

European scholarship received manuscripts from the community from the seventeenth century onward, and the foundational critical work was done by Mark Lidzbarski, whose edition and German translation appeared in 1915 under the title Das Johannesbuch der Mandaer; a full critical edition with English translation, prepared by Charles Haberl and James McGrath, appeared in 2020, renewing study of the book. For historians of religion its interest is double: it is a primary document of the only surviving Gnostic religion of antiquity, and it preserves an outsider tradition about John the Baptist and Jesus that, whatever its date, shows how the figures of the Jordan were remembered in a community that chose John. For Mandaeans it remains scripture, read and expounded by priests, its John the honoured teacher of the way of living water.