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.

3766. 'In the field' means provided for the Churches. This is clear from the meaning of 'the field' as the Church as regards good, dealt with in 2971. In the Word the Church is meant by the expressions 'land', 'ground', and 'the field', though each has a different shade of meaning. The reason 'the field' means the Church is that like a field it receives the seeds of goodness and truth; for the Church has the Word, the source of those seeds. This also is why everything included in the field means some aspect of the Church, such as that which is sown, that which is harvested, standing grain, wheat, barley, and everything else. And each of these too has a different shade of meaning.