1972–1977 Studies in theology, missiology and slavonic studies in Tübingen, Helsinki, Erlangen and Nürnberg. 1977–1979 assistant pastorate and Ordination in the ev. Luth. Church of Württemberg. 1979–1981 lecturer at Albrecht Bengel Haus Tübingen. 1981 Dr. Theol. (Erlangen, Nürnberg). 1981–1983 Theol. Lecturer at PIBC/Truk, Micronesia (Liebenzeller Mission). 1981, 1983–1985 Guest lecturer at the Liebenzeller Mission Seminary. 1983–1985 assistant pastor in Urbach. 1985–1995 with the Finnish ev. luth. Mission in Pakistan and Finnland. Member of the Islam committee of the Finnish ev. luth. Church. 1995–2009 Pastor in Hohenhaslach. Since 2000 Chairman of the RLC of the German ev. Allianz (AKREF). Participation in the Theological Commission of the World Evangelical Alliance. Guest professor Columbia International University (Korntal campus). Since 2007 cofounder and chairman International Institute for Religious Liberty Bonn, Cape Town, Singapur (IIRF).