Ancient manuscripts of John’s Gospel containing hermeneiai have long puzzled scholars, provoking debate about their origins, purpose, and use. The fragmentary nature of the early evidence has impeded progress towards a better understanding of these specialized books. The present study shows that these books are "Divining Gospels"—editions of John’s Gospel incorporating lot divination materials for use in fortune-telling. The study centers on material presented here for the first time: the text and translation of a unique sixth-century Syriac manuscript, the earliest and most complete example of a hermeneia Gospel. An analysis of the Syriac along with evidence from Greek, Coptic, Latin, and Armenian versions show they all preserve vestige...