Divrey Hayamim Bais 20:3-5

Orthodox Jewish Bible

³ And Yehoshaphat feared, and set his face to inquire of Hashem, and proclaimed a tzom throughout all Yehudah.

⁴ And Yehudah gathered themselves together, to ask help of Hashem, even from all the towns of Yehudah they came to seek help of Hashem.

⁵ And Yehoshaphat stood in the Kehal Yehudah and Yerushalayim, in the Beis Hashem, before the khatzer hachadashah,