'Threshold' in the Bible

But when they got up early the next morning, behold, Dagon had [again] fallen on his face on the ground before the ark of the Lord, and his head and both palms of his hands were [lying] cut off on the threshold; only the trunk [portion] of [the idol of] Dagon was left on him.

This is the reason neither the priests of Dagon nor any who enter Dagon’s house step on the threshold of Dagon in Ashdod to this day.