Two groups of people are particularly inclined to mention a calling when talking about their work motivation: those who are spiritual (because the concept of calling originated in the religious realm) and those in serving occupations (such as hospitals, schools, and nongovernmental organizations). Because Christian professors are in both groups, the concept of calling is likely to emerge. In this article, I trace the development of calling as a concept of work motivation from its traditional religious origin to its daily use in organizational scholarship. Several positive sides of callings are described, as well as the potential downsides that come with high aspirations. At the end of this exploration, I conclude with three practical suggestions for Christian professors and educators who live out a calling.