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.

8418. 'And gather the thing of a day in its day' means continually, in proportion to need. This is clear from the meaning of 'gathering' as receiving, for when 'raining' means flowing in - that is to say, good from the Divine flowing in - 'gathering' means receiving, because the one activity goes with the other; from the meaning of 'the thing' as the object to which it refers, in this instance the bread or manna from heaven; and from the meaning of 'a day in its day' as continually, in proportion to need. Continually is meant because they received the manna daily (for the meaning of 'daily' is continually, see 2838); and in proportion to need is meant because they were to gather as much each day as they were going to need and no more, which for each person was an omen