Stewart is married to Katherine, and they have six children. Their first love and passion is raising their children and developing their family as a “domestic church." They also consider it one of the great honors of their lives to serve Church of the Resurrection, where they marvel at the move of God they have been swept up in for the last 25 years. Stewart first came to Church of the Resurrection as a Wheaton College junior on Palm Sunday, 1988. Katherine and he learned from and served under Fr. William and Anne Beasley for a decade at Resurrection. During this time Stewart completed his Master's in Theology at Wheaton College Graduate School (where he was awarded the Kenneth Kantzer prize for theology) and ministered on college campuses in Chicago with InterVarsity Christian Fellowship. The combination of Resurrection, Wheaton College, and InterVarsity provided a most dynamic training season for the ministry. Here he learned how to lead (especially in regard to vision and liturgy), how to minister in the power of the Holy Spirit, and how to read and preach God's Word and to study the teachings of the Great Tradition.

Another ministry passion of Stewart's is raising up leaders and church planters. In September 2013, Stewart was consecrated Bishop of the Anglican Diocese of the Upper Midwest (ACNA). By the end of 2018, the Upper Midwest Diocese will have planted 35 new churches in 7 states since being formed a diocese in June 2013. He has a vision to see a Revival of Word and Sacrament infused by the Holy Spirit in the Upper Midwest.