John Frederick (PhD, St. Andrews) is assistant professor of theology and the worship arts coordinator at Grand Canyon University in Phoenix, Arizona. A trained musician, composer, and songwriter, he has served as worship leader at churches such as Park Street Church in Boston, and he is a coeditor of the books Galatians and Christian Theology and Ecclesia and Ethics. His original music has been featured on the soundtrack of Yu-Gi-Oh! The Movie, and he recorded and released the original worship album Carmen Dei: Truth Within the Static. John is ordained as a presbyter in the Anglican Church in North America and lives in Phoenix with his wife, Tara, and their son.