The final chapter of the Book of Zechariah describes the future purification of Yehuda and Yisrael, as the impure spirit is removed from the land. The purification will take place in Yerushalayim (Jerusalem) through the waters of an unnamed fountain that will gush from the earth and stream over the countryside, purifying the people and the land. Although it is not explicitly named as such, perhaps the source of this fountain is Yerushalayim’s Gichonspring where Shlomo (Solomon) was anointed (I Kings 1:38-39) and which provided drinking water and a means of  irrigation for the nearby residents of the Kidron valley.