Judges 1 verse 11

And Joshua returned, and all Israel with him, to Debir; and fought against it: And he took it, and the king thereof, and all the cities thereof; and they smote them with the edge of the sword, and utterly destroyed all the souls that were therein; he left none remaining: as he had done to Hebron, so he did to Debir, and to the king thereof; as he had done also to Libnah, and to her king.

And he went up thence to the inhabitants of Debir: and the name of Debir before was Kirjathsepher.