Matthew 10:14

“And whosoever shall not receive you, etc.] Into their houses, and refuse to entertain them and provide for them in a friendly manner; nor hear your words, slight their salutations, make no account of, but despise their good wishes for their welfare; and also treat with contempt the doctrines of the Gospel preached by them; and either would not attend on their ministry, or if they did, give no credit to what they should say, but deride and reject them. When ye depart out of that house, or city; to another house, or to another city, being obliged to remove, through their contemptuous rejection of them: shake off the dust of your feet. So Paul and Barnabas did at Antioch in Pisidia, when the…”

“And whosoever shall not receive you, nor hear your words, when ye depart out of that house or city--for possibly a whole town might not furnish one "worthy." shake off the dust of your feet--"for a testimony against them," as Mark and Luke add (Mar 6:11; Luk 10:11). By this symbolical action they vividly shook themselves from all connection with such, and all responsibility for the guilt of rejecting them and their message. Such symbolical actions were common in ancient times, even among others than the Jews, as strikingly appears in Pilate (Mat 27:24). And even to this day it prevails in the East.”

“See also Mark 6:8-11, and Luke 9:3-5. In both these places the substance of this account is given, though not so particularly as in Matthew. The general subject is the instructions given to the apostles. Matthew 10:9 Provide neither gold nor silver, nor brass - This prohibition of gold, silver, and brass is designed to prevent their providing money for their journey. Pieces of money of “small value” were made of brass. In your purses - Literally, in your girdles (belts). See the notes at Matthew 5:38-41. A “girdle” or “sash” was an indispensable part of the dress. This girdle was made “hollow,” and answered the purpose of a purse. It was convenient, easily borne, and safe. Matthew 10:10 Nor…”

“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. Matthew 10:16”

“10:14 shake its dust from your feet: This prophet-like gesture is explained by the Israelite custom of expressing displeasure with ungodliness by shaking off Gentile dust whenever crossing the border into Israel. The gesture signifies the disciples’ rejection of those who oppose God’s work (see Acts 18:6). Pronouncing judgment on those who reject the message is part of proclaiming the Good News about the Kingdom (see Matt 11:20-24; 13:10-15; 23:37-39; 24:1-36).”

“whosoever: Mat 10:40, Mat 10:41, Mat 18:5; Mar 6:11, Mar 9:37; Luk 9:5, Luk 9:48, Luk 10:10, Luk 10:11; Joh 13:20; Th1 4:8 shake: Neh 5:13; Act 13:51, Act 18:6, Act 20:26, Act 20:27 Matthew 10:15”