# As for those who do not receive you or listen

"If no people in that house or city will receive you or listen"

# listen to your words

Here "words" refers to what the disciples say. Alternate translation: "listen to your message" or "listen to what you have to say" 

# shake off the dust from your feet

"shake the dust off your feet as you leave." This is a sign that God has rejected the people of that house or city.