Shmuel Alef 5:5-7

Orthodox Jewish Bible

⁵ Therefore neither the kohanim of Dagon, nor any that enter Bais Dagon, tread on the miftan (threshold) of Dagon in Ashdod to this day.

⁶ But the Yad Hashem was heavy upon the Ashdodim, and He brought desolation, and struck them with techorim (tumors), even Ashdod and the vicinity thereof.

⁷ And when the anshei Ashdod saw that it was so, they said, The Aron Elohei Yisroel shall not abide with us; for His Yad is hard upon us, and upon Dagon eloheinu.