Rabbi David Rosen is a man dedicated to a myriad of missions: to further interfaith dialogue, to pursue justice and peace, and to promote veganism and healthy living. And because of his tenacity, he has greatly furthered these causes and influenced many people along the way. Capping a long career of interreligious involvement, Rosen has recently been involved in startling changes in Saudi Arabia related to interfaith relations, and the notable change in the religious orientation of the Kingdom.