Yahweh speaks of himself by name to remind Ezekiel and the people that what he is saying is important. Alternate translation: "I, the Lord Yahweh, say this" (See: [[rc://en/ta/man/translate/figs-123person]])
This word is spoken by those who see people doing bad things and realize that bad things will happen to the evildoers as a result. If your language has a similar word, you might want to use it here.
The word "house" is a metonym for the family that lives in the house, in this case the Israelites, the descendants of Jacob over many years. See how you translated this in [Ezekiel 3:1](../03/01.md). Alternate translation: "the Israelites" or "the Israelite people group" (See: [[rc://en/ta/man/translate/figs-metonymy]])