Matthew 10:12-14 Shake off the dust of your feet

¹² And when ye come into an house, salute it.
¹³ And if the house be worthy, let your peace come upon it: but if it be not worthy, let your peace return to you.
¹⁴ And whosoever shall not receive you, nor hear your words, when ye depart out of that house or city, shake off the dust of your feet.
-Matthew 10:12-14 King James Version (KJV)

Apocalypse Explained, by Emanuel Swedenborg, [1757-9], tr. by John Whitehead [1911], at sacred-texts.com

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...[8] In Luke: Jesus said to the seventy whom He sent forth, Into whatsoever house ye enter, first say, Peace be to this house. And if a son of peace be there, your peace shall rest upon it; but if not, it shall return to you again (Luke 10:5-6). And in Matthew: Entering into a house salute it. And if the house be worthy let your peace come upon it; but if it be not worthy let your peace return to you. And whosoever shall not receive you nor hear your words, as ye go forth out of that house or city shake off the dust of your feet (Matt. 10:12-14). That they were to say, "Peace be to the house" signifies that they were to learn whether those who were in it would receive the Lord; they were proclaiming the good tidings respecting the Lord, and thence respecting heaven, celestial joy, and eternal life, for all these are signified by "peace;" and those who received are meant by the "sons of peace," upon whom peace would rest, but if they did not acknowledge the Lord, and consequently did not receive the things pertaining to the Lord, or to peace, that peace would be taken away from them is what is signified by "if the house or city be not worthy let your peace return to you;" that in such case they might suffer no harm from the evils and falsities that were in that house or that city, it was commanded that "going forth, they should shake off the dust of their feet," which signifies that what is cursed therefrom might not cling to them, for "dust of the feet" signifies what is cursed; for what is [the lowest] ultimate in man, which is the sensual-natural, corresponds to the soles of the feet; and because evil clings to this, so in the case of those who were in the representatives of the church, as most were at that time, they shook off the dust of the feet when the truths of doctrine were not received. For in the spiritual world, when any good person comes to those who are evil, evil flows in from evil and causes some disturbance, but it disturbs only the [lowest] ultimates that correspond to the soles of the feet; therefore when they turn and go away it appears as if they shook the dust off their feet behind them, which is a sign that they are delivered, and that evil clings to those that are in evil. (That "the soles of the feet" correspond to the lowest natural things, and therefore signify these in the Word, see Arcana Coelestia, n. 2162, 3147, 3761, 3986, 4280, 4938-4952; and that "dust, which should be shaken off" signifies what is damned, n. 249, 7418, 7522.)