Larry Hurtado's One God, One Lord has been described as 'one of the most important and provocative Christologies of all time' (Alan F. Segal). The book has taken its place among works on Jesus as one consistently cited, consistently read, and consistently examined in scholarly discourse. Hurtado examines the early cultic devotion to Jesus through a range of Jewish sources. Hurtado outlines an early 'high' Christological theology, showing how the Christ of faith emerges from monotheistic Judaism. The book has already found a home on the shelves of many in its two previous editions. In this new Cornerstones edition Hurtado provides a substantial epilogue of some twenty-thousand words, which brings this ground-breaking work to the fore once more, in a format accessible to scholars and students alike. Larry Hurtado's seminal study, One Lord, One God, advanced the case that devotion to Jesus arose early and in Jewish Christian circles. That this thesis no longer seems implausible or novel is due in large measure to this book, as well as to Hurtado's continued contributions to the study of the practices of Jesus-devotion in earliest Christianity. The updated material provided with this third edition makes the book fresh and continually useful for those interested in understanding Hurtado's argument in its context and the impact that it has continued to make.