Jarrett was ordained a deacon in 2018, and serves as the chaplain to Belong Ottawa, including St. Luke's Table, Centre 454, and the Well. He has many years experience in various parish ministries, including pastoral care, preaching, and teaching.
Jarrett is also principal and full professor in the Liberal Arts College, Concordia University (Montreal) where he teaches courses in the history and philosophy of science through a “great books” curriculum. His specialty is the early modern period in political thought, concentrating on Martin Luther, the Reformation, and the Renaissance, but he also has a wide range of academic interests, including ancient Greek philosophy, early modern science, the American Founding, and the history of astronomy.
Jarrett and his wife Nikki, have two daughters, Hannah and Olivia.