Matthew 10:12-15

Once you enter a house, speak to the family there and say, ‘God’s blessing of peace be upon this house!’ And if those living there welcome you, let your peace come upon the house. But if you are rejected, that blessing of peace will come back upon you. And if anyone doesn’t listen to you and rejects your message, when you leave that house or town, shake the dust off your feet. Mark my words, on the day of judgment the wicked people who lived in the land of Sodom and Gomorrah will have a lesser degree of judgment than the city that rejects you, for the people of Sodom and Gomorrah did not have the opportunity that was given to them!