Wayne Grudem is Research Professor of Theology and Biblical Studies at Phoenix Seminary in Phoenix, Arizona. He previously taught for twenty years at Trinity Evangelical Divinity School, Deerfield, Illinois. He holds degrees from Harvard (BA), Westminster Seminary (MDiv), and Cambridge (PhD). He is the author of, among other books, Systematic Theology: An Introduction to Biblical Doctrine. Grudem also edited (with John Piper) Recovering Biblical Manhood and Womanhood —which was named “Book of the Year” by Christianity Today in 1992— and Are Miraculous Gifts for Today?. He is a former president of the Evangelical Theological Society.