3148. 'And the feet of the men who were with him' means purification of all things that were His in the natural man. This is clear from the meaning of 'the feet' as the things that belong to the natural man, dealt with in 2162, and from the meaning of 'the men who were with him' as all things in the natural man. It was customary for wayfarers on entering any house to wash their feet, as when Joseph's brothers were brought into his house, Genesis 43:24; when the Levite and those accompanying him were received into the old man's house, Judges 19:21; and when Uriah after his journey was ordered by David to go down to his house and to wash his feet, 2 Samuel 11:8. The reason for this custom was that journeys and travels meant things to do with instruction, and consequently with life, see 1293, 1457, 1463, 2025, and that these had to be purified, as shown just above in 3147. And there was the added reason that the filth that is meant in the spiritual sense should not cling to and defile the house, which is the human being, as also is evident from the requirement that they were to shake off the dust on their feet if a city or house did not receive peace, Matthew 10:14.

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.