Matthew 10:14-16

Whoever does not receive you, nor heed your words, as you go out of that house or that city, shake the dust off your feet. Truly I say to you, it will be more tolerable for the land of Sodom and Gomorrah in the day of judgment than for that city. “Behold, I send you out as sheep in the midst of wolves; so be shrewd as serpents and innocent as doves.