In a casual reading, the story at the beginning of Luke chapter 9 doesn't seem to have much relation to the events of the previous chapter. But, looking deeper, it does.

At the end of Luke chapter 8, when the little girl who seemed to be dead was brought back to life, Jesus commanded that her parents give her something to eat. In sacred scripture, giving someone “something to eat” is about spiritual nourishment. It refers not only to teaching, but also spiritually nourishing one another with words of encouragement that align with spiritual truth. To the extent that we do this for one another, we become God’s disciples and apostles, cooperating with Him in the work of salvation. We are “disciples” while in His presence, learning from His Word. And we are His “apostles” when we are being sent out to minister to others, through our words and actions.

It's appropriate, then, that chapter 9 begins with Jesus calling together His twelve disciples, and then sending them out to minister to others:

“Having called together His twelve disciples, He gave them power and authority over all demons, and to cure diseases. And He sent them out to preach the kingdom of God, and to heal the sick” (Luke 9:1-2).

In a deep sense, the gathering together of the twelve disciples, before sending them out as apostles, represents an important step in our spiritual development. This begins when Jesus “calls His twelve disciples together” in us, which represents that time in our lives when we begin to understand matters of the spirit more deeply. Every “disciple” represents an essential spiritual principle. As we “gather” these principles together in our minds, striving to see how they cohere and relate to the larger whole, we begin to see the connections between ideas, and we develop a keener discernment between what is primary and what is secondary. As a result, we can apply the truth we have been learning more usefully in our lives. ¹

After gathering the disciples together, Jesus sends them forth as His apostles, giving them specific instructions for the journey. “Take nothing for your journey,” He says to them. They are not to take a staff, or a backpack, or bread, or silver, or even an extra change of clothes. Every word has spiritual significance. They will not be needing a “staff,” because they will be relying on the Lord alone. They will not need a “pack” to store up what they have learned, because the Lord will give them what to say. They will not need “bread” or “silver,” because the Lord will provide all the goodness (“bread”) and all the truth (“silver”) they need. And they will not need an extra tunic because they will be clothed in truth from the Lord, and will not need anything additional from themselves.

In this case, less is more. When there is less of self, there is more of God. ²

Shaking off the dust:

Jesus then says to them, “And into whatever house you enter, there remain, and thence go out. And as many as shall not accept you, when you come out of that city, shake off even the dust from your feet for a testimony against them” (Luke 9:4-5). A “house,” as we have mentioned before, represents the human mind. It is the place where we think things over, consider our options, and dwell on those matters that are significant to us. Our “house,” then, is our spiritual residence, our “dwelling-place.”

Spiritually speaking, everyone has a dwelling-place — a set of beliefs about themselves, about others, and about God. Because of this, some people will accept the teachings of the apostles gladly, while others will reject them. Knowing this in advance, Jesus tells them that if their teachings are rejected, the apostles should leave the house, come out of the city, and “shake the dust from off their feet.”

In sacred scripture, the term “dust” refers to things that are low and relate to the world of the external senses. Just as dust settles to the earth, there is a tendency to remain focused on things that gratify our worldly senses without lifting our minds to higher things. In the Hebrew Scriptures, this is represented by the lowly serpent who deceived Eve. As it is written, “So the Lord God said to the serpent, “Because you have done this … you shall eat dust all the days of your life” (Genesis 3:14). ³

Jesus’ instruction to “shake off the dust” is sound advice, not only for the apostles, but for each of us. Along the spiritual journey, as we are learning truth and putting it into our lives, we may, at times, find ourselves being dragged down to lower things — those things that are merely worldly and temporal. This is, spiritually, “the dust on our feet.” Whether the dust comes through the negative influence of others or the self-serving thoughts we entertain, Jesus tells us to “shake the dust from off our feet,” and continue our journey. ⁴

This is precisely what the apostles do. As it is written in the next verse, “And going out, they passed into the villages, announcing the gospel and curing everywhere” (Luke 9:6).

V:

5084. 'Of the house of the chief of the attendants' means the things that are first and foremost in explanations. This is clear from the meaning of 'the chief of the attendants' as the things which are first and foremost in explanations, dealt with in 4790, 4966. The meaning here therefore is that both kinds of sensory impressions were cast aside by the things which are first and foremost in explanations, that is to say, by those which belong to the Word in the internal sense. Sensory impressions are said to be cast aside when the things that are first and foremost in explanations place no reliance on them; for they are indeed sensory impressions, and impressions received by the mind directly through the senses are illusions. The senses are the source of all the illusions that reign in a person, and they are the reason why few have any belief in the truths of faith and why the natural man is opposed to the spiritual man, that is, the external man to the internal. Consequently if the natural or external man starts to have dominion over the spiritual or internal man, no belief at all in matters of faith exists any longer, for illusions cast a shadow over them and evil desires smother them.

[2] Few know what the illusions of the senses are and few believe that these cast a shadow over rational insights and most of all over spiritual matters of faith - a shadow so dark that it blots them out. This happens especially when at the same time what a person delights in is the result of desires bred by a selfish and worldly love. But let examples be used to shed some light on this matter, first some examples of illusions of the senses which are purely natural ones, that is, illusions about things within the natural creation, then some examples of such illusions in spiritual things.

I. It is an illusion of the senses - a purely natural one, or an illusion about the natural creation - to believe that the sun is borne round this globe once a day, and that the sky too and all the stars are borne round at the same time. People may be told that it is impossible and therefore inconceivable that so vast an ocean of fire as the sun, and not only the sun but also the countless stars, should revolve once a day without undergoing any changes of position in relation to one another. They may be told in addition that one can see from the planetary system that our own globe performs a daily movement and an annual one, by rotations on its axis and by revolutions. This can be recognized from the fact that the planets are globes like ours, some of which have moons around them and all of which, as observation shows, perform daily and annual movements like ours. But for all that they are told, the illusion the senses prevails with very many people - that things really are as the eye sees them.

[3] II. It is an illusion of the senses - a purely natural one, or an illusion about the natural creation - that the atmosphere is a single entity, except that it becomes gradually and increasingly rarified until a vacuum exists where the atmosphere comes to an end. A person's external senses tell him nothing else than this when their evidence alone is relied on.

III. It is an illusion of the senses, a purely natural one, that the power which seeds have to grow into trees and flowers and to reproduce themselves was conferred on them when creation first began, and that that initial conferment is what causes everything to come into being and remain in being. People may be told that nothing can remain in being unless it is constantly being brought into being, in keeping with the law that continuance in being involves a constant coming into being, and with another law that anything that has no connection with something prior to itself ceases to have any existence. But though they are told all this, their bodily senses and their thought that is reliant on their senses, cannot take it in. Nor can they see that every single thing is kept in being, even as it was brought into being, through an influx from the spiritual world, that is, from the Divine coming through the spiritual world.

[4] IV. This gives rise to another illusion of the senses, a purely natural one, that single entities exist called monads and atoms. For the natural man believes that anything comprehended by his external senses is a single entity or else nothing at all.

V. It is an illusion of the senses, a purely natural one, that everything is part of and begins in the natural creation, though there are indeed purer and more inward aspects of the natural creation that are beyond the range of human understanding. But if anyone says that a spiritual or celestial dimension exists within or above the natural creation, this idea is rejected; for the belief is that unless a thing is natural it has no existence.

VI. It is an illusion of the senses that only the body possesses life and that when it dies that life perishes. The senses have no conception at all of an internal man present within each part of the external man, nor any conception that this internal man resides in the inward dimension of the natural creation, in the spiritual world. Nor consequently, since they have no conception of it, do the senses believe that a person will live after death, apart from being clothed with the body once again, 5078, 5079.

[5] VII. This gives rise to the further illusion of the senses that no human being can have a life after death any more than animals do, for the reason that the life of an animal is much the same as that of a human being, the only difference being that man is a more perfect kind of living creature. The senses - that is, the person who relies on his senses to think with and form conclusions - have no conception of the human being as one who is superior to animals or who possesses a life superior to theirs because of his ability to think not only about the causes of things but also about what is Divine. The human being also has the ability to be joined through faith and love to the Divine, as well as to receive an influx from Him and to make what flows in his own. Thus because of his response to such influx from the Divine it is possible for the human being to receive it, which is not at all the case with animals.

[6] VIII. This gives rise to yet another illusion, which is that what is actually living in the human being - what is called the soul - is merely something air-like or flame-like which is dispersed when the person dies. Added to this is the illusion that the soul is situated either in the heart, or in the brain, or in some other part of him, from where it controls the body as if this were a machine. One who relies on his senses has no conception of an internal man present in every part of his external man, no conception that the eye sees not of its own accord, and that the ear hears not of its own accord, but under the direction of the internal man.

IX. It is an illusion of the senses that no other source of light is possible than the sun or else material fire, and that no other source of heat than these is possible. The senses have no conception of the existence of a light that holds intelligence within it, or of a heat that holds heavenly love within it, or that all angels are bathed in that light and heat.

X. It is an illusion of the senses when a person believes that he lives independently, that is, that an underived life is present within him; for this is what the situation seems to be to the senses. The senses have no conception at all that the Divine alone is one whose life is underived, thus that there is but one actual life, and that anything in the world that has life is merely a form receiving it, see 1954, 2706, 2886-2889, 2893, 3001, 3318, 3337, 3338, 3484, 3742, 3743, 4151, 4249, 4318-4320, 4417, 4523, 4524, 4882.

[7] XI. The person who relies on his senses can be misled into a belief that adulterous relationships are allowable; for his senses lead him to think that marriages exist merely for the sake of order which the upbringing of children necessitates, and that provided this order is not destroyed it makes no difference who fathers the children. He can also be misled into thinking that the married state is no different from having sex with someone, except that it is allowable. That being so, he also believes that it would not be contrary to order for him to many several wives if the Christian world, basing its ideas on the Sacred Scriptures, did not forbid it. If told that a correspondence exists between the heavenly marriage and marriages on earth, and that no one can have anything of marriage within him unless spiritual good and truth are present there, also that a genuinely conjugial relationship cannot possibly exist between one man and several wives, and consequently that marriages are intrinsically holy, the person who relies on his senses rejects all this as worthless.

[8] XII. It is an illusion of the senses that the Lord's kingdom, or heaven, is like an earthly kingdom, that joy and happiness there consist in one person holding a higher position than another and as a consequence possessing more glory than another. For the senses have no conception at all of what is implied by the idea that the least is the greatest and the last is the first. If such people are told that joy in heaven or among angels consists in serving the welfare of others without any thought of merit or reward, it strikes them as a sorrowful existence.

XIII. It is an illusion of the senses that good works earn merit and that to do good to someone even for a selfish reason is a good work.

XIV. It is also an illusion of the senses that a person is saved by faith alone, and that faith may exist with someone who has no charity, as well as that faith, not life, is what remains after death. One could go on with very many other illusions of the senses; for when a person is governed by his senses the rational degree within him, which is enlightened by the Divine, does not see anything. It dwells in thickest darkness, in which case every conclusion based on sensory evidence is thought to be a rational one.