Shofetim 18:28-30

Orthodox Jewish Bible

²⁸ And there was no matzil (deliverer, rescuer), because it was far from Tzidon, and they had no tie with adam (any man); and it was in the valley that lieth near Beit-Rechov. And they built an ir, and dwelt therein.

²⁹ And they called the shem of the Ir Dan, after the shem of Dan their av, who was born unto Yisroel; howbeit the shem of the Ir was Layish previously.

³⁰ And the Bnei Dan set up the pesel; and Y’honatan ben Gershom ben Menasheh, he and his banim were kohanim to the shevet haDani until the yom Golus HaAretz [722 B.C.E.].