Mark Trethewey, a recently retired Mechanical Engineer, has been doing ministry in music, preaching, evangelism and mission trips for the past 30 years. He has performed concerts in over 15 states and a few countries. His music has been on a number of Radio stations and a few TV spots.  His book, “Christ’s Sanctuary” has been instrumental in several 4 part seminars, prayer meetings and youth classes in studying the Sanctuary. He has done evangelistic mission trips to Russia, Peru, Rwanda, Romania, the Philippines, and the wild jungles of Raymond Washington. Two future trips are planned to Europe (May-June 2023) and Papua New Guinea (2024).