Phyllis J. Le Peau (1944-2022) worked with InterVarsity Christian Fellowship for over two decades in St. Louis and the Chicago metro area. She is the author or coauthor of several Bible study guides, including Ephesians, Women of the New Testament, and Grandparenting in the LifeGuide® Bible Studies series. She and her husband, Andy, have four married children and thirteen grandchildren.

John R. W. Stott (1921-2011) was known worldwide as a preacher, evangelist, and communicator of Scripture. For many years he served as rector of All Souls Church in London. A leader among evangelicals in Britain, the United States, and around the world, Stott was a principal framer of the landmark Lausanne Covenant (1974). His connections in and heart for the global church led him to found Langham Partnership. Langham continues its work today, equipping key leaders to preach God's Word clearly, faithfully, and relevantly in over 140 countries. Stott's many books, including Basic Christianity and The Cross of Christ, have sold millions of copies.