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.

7929. 'And not allow the destroyer to come to your houses' means that falsity and evil from the hells will not at all come near the will. This is clear from the meaning of 'will not allow' as will not come near; from the meaning of 'the destroyer' as hell, dealt with in 7879, thus falsity and evil from the hells, since the hells derive their existence from falsity and evil; and from the meaning of 'houses' as aspects of the will, dealt with in 710, 7848. For 'house' means a person, therefore also his mind, since a person is a person by virtue of his understanding of truth and his desire for good, which are abilities belonging to the mind. And since a person is a person primarily by virtue of that part of the mind called the will, the will is therefore also meant by 'house'. But which of these is meant is evident from the train of thought in the internal sense.