Pastor David Wallis is the president of Zion Fellowship International, Zion Christian University and the Chancellor of Zion Ministerial Institute. He and his wife Marilyn reside in Waverly, New York where he is also the Senior Pastor of Mount Zion Church. He and his wife Marilyn were missionaries in the Philippines and India for nineteen years. Pastor Wallis was on the pastoral staff of a church in Auckland, New Zealand for eight years. The Wallises have had the privilege of ministering in over 40 nations of the world in pastors' seminars, conventions, Bible colleges, and churches.