“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.”
King James Version (KJV)
10:14 Shake off the dust from your feet - The Jews thought the land of Israel so peculiarly holy, that when they came home from any heathen country, they stopped at the borders and shook or wiped off the dust of it from their feet, that the holy land might not be polluted with it. Therefore the action here enjoined was a lively intimation, that those Jews who had rejected the Gospel were holy no longer, but were on a level with heathens and idolaters.
Mt 10:14 Shake off the dust of your feet. This was done when there was a positive rejection of the gospel. It was a symbolical act, signifying that all responsibility for the stubborn household or city had ended. Compare Mr 6:11 Lu 9:5 Ac 13:51. Nor can the gospel be forced upon an unwilling people in any age.