Inc. --This text refers to an out of print or unavailable edition of this title. Michael Horton is the president of White Horse Inn, a multi-media catalyst for Reformation. He is editor-in-chief of Modern Reformation magazine (www.modernreformation.org) and co-host of the nationally syndicated White Horse Inn radio broadcast (www.whitehorseinn.org). Michael Horton is also the J. Gresham Machen Professor of Systematic Theology and Apologetics at Westminster Seminary California. Before coming to WSC, Michael Horton completed a Research Fellowship at Yale University Divinity School. A member of various societies, including the American Academy of Religion and the Evangelical Theological Society, Michael Horton is the author/editor of twenty books, including a series of studies in Reformed dogmatics published by Westminster John Knox, whose final volume (_People and Place: A Covenant Ecclesiology_) was published in 2008 which won the 2008 Christianity Today Book of the Year award in Theology. His most recent books are _The Gospel-Driven Life_, _Christless Christianity_ and _People and Place: A Covenant Ecclesiology_. He has written articles for _Modern Reformation_, _Pro Ecclesia_, _Christianity Today_, _The International Journal of Systematic Theology_, _Touchstone_, and _Books and Culture_. Michael Horton is associate pastor of Christ United Reformed Church in Santee, California, and lives in Escondido, with his wife, Lisa, and four children. Horton assembles a powerful indictment of the modern church for her dalliances with the ancient heresy of gnosticism. Oftentimes I see certain practices -- particularly in charismatic circles -- that I find quite discomfiting, though until now I didn't know why. Horton