Salt of the Earth documents the lives of nine Palestinian Christians living in the northern West Bank. This project began when Marthame and Elizabeth Sanders were living in the mostly Christian Palestinian village of Zababdeh from August, 2000 through December, 2003. Volunteers with the Presbyterian Church (USA), their ministry was one of ecumenical support to the Church in the land of its birth. The film grew out of a desire among their Palestinian neighbors to share their stories, and a desire among Christians in the West to hear them. The Sanders describe the project as "a labor of love, a response to the graciousness, warmth, hospitality, and welcome we received from our Palestinian neighbors and colleagues”.