1 Samuel 5:4-5

4But when they arose early the next morning, behold, 1Dagon had fallen on his face to the ground before the ark of the Lord. And the head of Dagon and both the palms of his hands were cut off on the threshold; 2only the trunk of Dagon was left to him. 5Therefore neither the priests of Dagon nor all who enter Dagon’s house 3tread on the threshold of Dagon in Ashdod to this day.