A "house" is essentially a container -- for a person, a family, several families or even a large group with shared interests (think of the term "houses of worship.") In the Bible, a "house" is also a container, but for spiritual things rather than natural things. In various uses a "house" can represent part of the mind, the whole mind, a whole person or even a church. The other nuance to the word "house" is that it is generally used in regards to our affections and desires rather than our thoughts and principles. This makes sense; we tend to engage our thoughts and rationality when we are out in the world doing our work, but when we are inside our houses we are driven most by love for our families and the desire to be good to those we love. So "house" tends to represent the things we want and care about -- which are ultimately the things that define us.

156. Internal Meaning of Ezekiel, Chapter 33

Of those who instruct and are instructed. (2)

1-5 Those who are instructed by the preacher concerning falsities and do not take heed, perish; (2, 11)

6-7 when the preacher sees falsities and does not give instruction concerning them, he perishes. (2)

8-9 The same is true of everyone who teaches doctrine, when he teaches and is not heard, or when he does not teach. (2, 3)

10-11 So now in the church, they must be taught in order that they may be converted, because the Lord wishes the salvation of all. (2)

12-16 If the evil man becomes good, His evil is forgiven; if the good man becomes evil, His good is not regarded. (2)

17-20 These things are Divine justice. (2, 3)

21-26 A perverted church declares that it is the church because it has the Word; nevertheless it falsifies the Word, worships another god and does evil, (2, 4)

27-29 and will perish by reason of falsities of evil, (3)

30-33 notwithstanding its hearing the Word, and being in external worship. (3)