'Tribes' in the Bible

“Seek the Lord [search diligently for Him and long for Him as your most essential need] so that you may live,Or He will rush down like a [devouring] fire, O house of Joseph,And there will be no one to quench the flame for [idolatrous] Bethel,

“Behold, the eyes of the Lord God are on the sinful [northern] kingdom [of Israel’s ten tribes]And I shall destroy it from the face of the earth;But I shall not totally destroy the house of Jacob [that is, the entire nation of Israel],”Says the Lord.