Gregg R. Allison (PhD, Trinity Evangelical Divinity School) is professor of Christian theology at the Southern Baptist Theological Seminary. He is secretary of the Evangelical Theological Society, a book review editor for the Journal of the Evangelical Theological Society, an elder at Sojourn Community Church, and a theological strategist for Harbor Network. Allison has taught at several colleges and seminaries, including Western Seminary in Portland, Oregon, and Trinity Evangelical Divinity School in Deerfield, Illinois, and is the author of numerous books, including Historical Theology; Sojourners and Strangers; and Roman Catholic Theology and Practice.