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.

4982. 'On all that he had in the house and in the field' means in life and in doctrine. This is clear from the meaning of 'the house' as good, dealt with in 2048, 2233, 2234, 2559, 3128, 3652, 3720, and as 'the house' means good it also means life, since all good is the good of life; and from the meaning of 'the field' as the Church's truth, dealt with in 368, 3508, 3766, 4440, 4443, and as this means the Church's truth it also means doctrine, for all truth is the truth of doctrine. House and field are also referred to several times in other parts of the Word, and when in such places the celestial man is the subject, 'house' means celestial good and 'field' spiritual good. In this case celestial good is the good of love to the Lord, and spiritual good is the good of charity towards the neighbour. But when the spiritual man is the subject 'house' means the celestial as it exists with him, which is the good of charity towards the neighbour, while 'field' means the spiritual as it exists with him, which is the truth of faith. 'The house' and 'the field' have the same meanings in Matthew,

Let him who is on the roof of the house not go down to take anything out of his house; and let him who is in the field not turn back to get his clothing. Matthew 24:17-18.

See 3652.