If your language has to identify the one speaking, it would be best to identify the speaker as the "one who looked like a man" ([Ezekiel 1:26](../01/26.md)). It was not "the Spirit."
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](./01.md). AT: "the Israelites" or "the Israelite people group" (See: [[rc://en/ta/man/translate/figs-metonymy]])
This is a hypothetical situation that could have happened but did not. Yahweh did not send Ezekiel to people who did not understand his language. (See: [[rc://en/ta/man/translate/figs-hypo]])
This phrase suggests that the people resist God and are unwilling to obey him. The heart is used to describe the place in the body where a person decides what they want to do. See how you translated this in [Ezekiel 2:4](../02/04.md). (See: [[rc://en/ta/man/translate/figs-metaphor]])