Arguing against restricting the meaning of purity language to the individual moral sphere (as many commentaries do), the central argument of Purity and Worldview in the Epistle of James is that purity language both articulates and constructs the worldview in James's epistle. Lockett offers a taxonomy of purity language, applied as a heuristic guide to understand the function of purity and pollution in the epistle. Through this analysis the study concludes that James is not calling for sectarian separation, but rather demonstrates a degree of cultural accommodation while calling forth specific socio-cultural boundaries between the readers and the world. “Lockett expertly advances his own case for the significance of purity in James and finely tunes its role as a major concern of its perfection theme...It covers an aspect of James that deserves treatment and provides meaningful research for others to ponder, both in its broad strokes and in its fine points. For those interested in the Epistle of James it should be required reading.” ―William R. Baker, Stone Campbell Journal, Vol. 13, 2010 “...Lockett makes a convincing case for his thesis. It should profit serious students of James.” ― Religious Studies Review, September 2009 “Whether it involves questions about the authorship of the letter of James or its peculiar theological assumptions or the social setting of its readers, recent decades have seen a surge of interest, even fascination, with the document. Based on his research at the University of St. Andrews, under the guidance of Ron Piper, Dairan Lockett has contributed a valuable monograph to the literature. Current and future students will need to stir his conclusions into the mix of the ongoing research.” ―Duane Warden, Journal of the Evangelical Theological Society, 2010 Darian Lockett is Assistant Professor of New Testament, Talbot School of Theology, Biola University, CA, USA Chris Keith is Research Professor of New Testament and Early Christianity at MF Norwegian School of Theology, Religion and Society, Norway. He is the author of The Pericope Adulterae , the Gospel of John and the Literacy of Jesus , a winner of the 2010 John Templeton Award for Theological Promise, and Jesus' Literacy: Scribal Culture and the Teacher from Galilee . He is also the co-editor of Jesus among Friends and Enemies: A Historical and Literary Introduction to Jesus in the Gospels , and was recently named a 2012 Society of Biblical Literature Regional Scholar.