Is the Nag Hammadi Apocalypse of Paul a Valentinian text? Many would say no, few would say yes. The Valentinian Temple brings together all the available evidence to produce a systematic argument in favour of the Apocalypse of Paul's Valentinian origins. From Valentinus himself to the Gospel of Truth and the Gospel of Philip, this book traces one of the most neglected trajectories in Valentinian Christianity, namely the pursuit of mystical experiences oriented around a heavenly temple. Starting with the divine Name in the fragments of Valentinus, the development of a high-priestly Christology is uncovered across a range of primary sources, culminating in the Gospel of Philip's temple-based rituals of initiation. The Valentinian Temple argues that it is against this intellectual background that the Apocalypse of Paul ought to be understood. This book will be of interest to experts and students in Gnosticism, Valentinianism, early Christianity, Coptic and biblical literature, and Pauline studies.