Matthew 10:11-14

And into whatsoever city or village ye shall enter, search out who in it is worthy; and there abide till ye go forth. And as ye enter into the 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 that city, shake off the dust of your feet.