Chemosh is the chief god of the Moabites. See how you translated this name in [Jeremiah 48:7](./07.md). (See: [[rc://en/ta/man/translate/translate-names]])
The word "house" is a metonym for the family that lives in the house. In this case it refers to Israel's descendants. See how you translated this in [Jeremiah 2:4](../02/04.md). Alternate translation: "the Israelites" or "the Israelite people group" (See: [[rc://en/ta/man/translate/figs-metonymy]])
Possible meanings are 1) this refers to the city of Bethel where the Israelites worshiped a golden calf or 2) Bethel is the name of a false god the Israelites worshiped.