Stanley J. Grenz is Professor of Theology and Ethics at Carey/Regent College, Vancouver, and affiliate professor at Northern Baptist Theological Seminary, Lombard, Illinois. He is the author of many books, including "Theology for the Community of God" and "A Primer on Postmodernism". Westminster John Knox Press has published several of his books, including "Sexual Ethics: An Evangelical Perspective"; "Welcoming But Not Affirming: An Evangelical Response to Homosexuality"; and "What Christians Really Believe and Why".
Roger E. Olson (Ph.D., Rice University) is professor of theology at George W. Truett Theological Seminary of Baylor University in Waco, Texas. He is the author of The Story of Christian Theology: Twenty Centuries of Tradition & Reform, The Mosaic of Christian Belief: Twenty Centuries of Unity & Diversity (both InterVarsity Press) and The Westminster Handbook to Evangelical Theology (Westminster John Knox). He is also coauthor of 20th-Century Theology: God & the World in a Transitional Age and Who Needs Theology? An Invitation to the Study of God (both with Stanley J. Grenz, InterVarsity Press), and of The Trinity (with Christopher A. Hall, Eerdmans).