Shake the dust off your feet where no one receives you or listens to you.
Whoever will not receive you or listen to your words—go outside that house or town and shake the dust from your feet. Truly, I say to you, it will be more tolerable for the land of Sodom and Gomorrah on the day of judgment than for that town. Matthew 10:14-15
And as for those who do not welcome you, when you leave that town, shake the dust from your feet in testimony against them. Luke 9:5
Whatever town you enter and they do not receive you, go out into the streets and say, ‘The dust of your town that clings to our feet, even that we shake off against you.’ Yet know this: the kingdom of God is at hand. I tell you, it will be more tolerable for Sodom on that day than for that town. Luke 10:10-12
Whatever place does not welcome you or listen to you, leave there and shake the dust off your feet in testimony against them. Mark 6:11
This seems harsh. This is part of the basis of the old adage that we are only responsible for sharing the good news, not for people’s response to it. This can be the merciful thing to do, however, because the more revelation and opportunity a person has, the more severely they will be judged if they do not respond. This also increases the opportunity for those who will respond to hear the message since the message-bearers will not be absorbed with the unresponsive for long periods of time. Also, those who fail to respond now may well become more responsive later, and some of the people who do respond now may be the ones to take the message to them at that time.