In Jerusalem sits an ancient water reservoir that served the city and the Temple during the time of Solomon’s Temple; it was known as the upper pool. Later during the expansion of the Second Temple, a second pool was constructed to increase water capacity. As Herod the Great continues his expansion in Jerusalem these pools became a popular place for washing and were thought to be healing waters. They would come to be known as Bethesda, which means “house of mercy,” or “house of grace.”