Andreas J. Köstenberger (PhD, Trinity Evangelical Divinity School) is the theologian in residence and director of the equipping center at Fellowship Raleigh, a cofounder of Biblical Foundations, and a host at Oak Tree Cottage, a hospitality and coaching ministry to Christian leaders. He is the author, editor, or translator of over sixty books, including A Theology of John's Gospel and Letters; God, Marriage, and Family; and Invitation to Biblical Interpretation.
Alexander Stewart (PhD, Southeastern Baptist Theological Seminary) is academic dean and assistant professor of New Testament language and literature at Tyndale Theological Seminary in Badhoevedorp, the Netherlands. He is the coauthor (with Andreas J. Köstenberger) of The First Days of Jesus.