Pastoral Staff

As the pastors of Zion Lutheran Church we serve as both shepherd and servant of God’s flock. Serving as pastors, on a daily basis, God uses us to carry out His most wonderful work, that of saving the lost among his people in Bismarck. Caring for the members of Zion by being active in preaching, teaching, administering the Sacraments, visiting members, comforting the sorrowing, giving godly counsel, and providing a vision of outreach.

Rev. Thomas R. Marcis, Jr., Senior Pastor, originally from Cleveland, Ohio, Pastor Marcis is a 1986 graduate of Concordia Seminary, St. Louis, MO. He began his ministry in Zap, North Dakota, where he served for three years before coming to Zion in July 1989. Pastor Marcis has served the church at large as the Chairman for the LCMS Board for Human Care, as Chairman for the Advisory Committee for LCMS World Relief for the Lutheran Church-Missouri Synod, as a Synodical Reconciler, as Chairman of the North Dakota District Board of Directors, Director for the North Dakota District’s Division of Education and as Chairman for the North Dakota District Rural Ministry Task Force. He serves as Head coach of boys soccer for Legacy High School in Bismarck. He and his wife Sara, have four grown children: Rich, Katie, Bekah and David. You may contact him at

Vicar – July 2021- June 2022

Aidan Moon, Vicar, is a current student at Concordia Seminary St. Louis. Vicar Moon grew up on cattle ranches in Montana, New Mexico, and most significantly near Colorado Springs, CO, where he met his wife, Naomi. He received his bachelors in Christian Educational Leadership and Theology from Concordia University, Nebraska, where he also had the opportunity to study in Cambridge, England, and spent summers working as a camp counselor in Colorado. Vicar Moon then continued his preparation for pastoral ministry at seminary. He cares deeply about many aspects of ministry: meeting people with the Gospel in real suffering and struggle, working together to learn more deeply the truths of Scripture, learning how to do life together as the church and how our gathering together forms us for our lives in the world. He enjoy hiking, riding, and exploring new country, reading and good conversation. He can be contacted at: