Jack Voelkel is a longtime missionary with Latin America Mission (LAM). For twenty years he and his wife, Mary Anne, pioneered a university ministry in Colombia that is a member of the International Fellowship of Evangelical Students (IFES). He was also a professor at the Biblical Seminary in Medllin for ten years. Voelkel is Urbana's missionary-in-residence and serves as the voice of "Ask Jack," Urbana.org's most popular column. He and Mary Anne live in Tucson, Arizona, and return to Colombia yearly for teaching assignments.