Mark 6:11

If anyone will not welcome you or listen to you, shake the dust off your feet when you leave that place, as a testimony against them.”

Note BYZ and TR include Truly I tell you, it will be more tolerable for Sodom and Gomorrah on the day of judgment than for that town; see Matthew 10:15.

And whosoever shall not receive you, nor hear you, when ye depart thence, shake off the dust under your feet for a testimony against them. Verily I say unto you, It shall be more tolerable for Sodom and Gomorrha in the day of judgment, than for that city.

Whoever will not receive you nor hear you, as you depart from there, shake off the dust that is under your feet for a testimony against them. Assuredly, I tell you, it will be more tolerable for Sodom and Gomorrah in the day of judgment than for that city!”

And whatsoever place shall not receive you, and they hear you not, as ye go forth thence, shake off the dust that is under your feet for a testimony unto them.