Walter L. Liefeld has a PhD in the New Testament and taught at Trinity Evangelical Divinity School for thirty-one years. He has also been a pastor and InterVarsity staff member. The author of six books and many articles, he also was one of the translators of the NIV and TNIV versions. He has traveled extensively, teaching in some twenty countries. Now retired, he lives in Elmhurst, Illinois, with his wife, Olive.