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.

7215. 'And Moses spoke in this way to the children of Israel' means an exhortation from the law of God to those who belonged to the Lord's spiritual kingdom. This is clear from the meaning of 'speaking' as an exhortation, for he spoke to them what Jehovah had commanded him; from the representation of 'Moses' as the law of God, dealt with in 6723, 6752; and from the representation of 'the children of Israel' as the Lord's spiritual kingdom, dealt with in 6426, 6637.