John Piper

John Stephen Piper (born January 11, 1946) is an American Reformed Baptist theologian and retired pastor. Specializing in New Testament studies, he is chancellor of Bethlehem College and Seminary in Minneapolis, Minnesota. Piper taught biblical studies at Bethel University for six years (1974–1980), before serving as pastor for preaching and vision of Bethlehem Baptist Church (Converge) in Minneapolis for 33 years (1980–2013).

Piper is the founder and senior teacher of Desiring God (desiringgod.org), named for his book Desiring God: Meditations of a Christian Hedonist (1986), and has written a number of award-winning books, including ECPA Christian Book Award winners Spectacular Sins, What Jesus Demands from the World, Pierced by the Word, and God's Passion for His Glory, as well as bestsellers Don't Waste Your Life and The Passion of Jesus Christ.

Piper has been extensively active online, particularly with his podcast Ask Pastor John in which he answers submitted questions. It has over 2,000 episodes.