Salt and light; two very common but essential commodities we often take for granted. The audience Jesus addresses in his first recorded sermon was more keenly aware of their indispensability than we are today. And Jesus uses both as metaphors to portray the impact his followers were to have in the world. “Salt” as a preservative and flavor enhancer helps to delay moral and spiritual breakdown while adding value to an eroding society, and “light” becomes a beacon in a world shrouded in darkness. “A motif implicit in the beatitudes now becomes an explicit theme, that is, the believer as witness.” - D. A. Carson.