Pastor Kelly Williams founded and has served as the senior pastor for Vanguard Church in Colorado Springs for 28 years. During this time, he has spoken for the Billy Graham Evangelistic Association and authored several books, including Real Marriage: Where Fantasy Meets Reality, co-written with his wife Tosha, Friend of Sinners: Taking Risks to Reach the Lost, The Mystery of 23: God Speaks, and The Good Pastor. He also contributes regularly to Patheos, Christian Today, Dallas Theological Seminary, The Christian Post, Church Leaders, and Outreach Magazine.