2 Bible Verses about Dust, Figurative Use

And, whosoever does not receive you, nor hear your words, as ye are going forth out of that house or city, shake off the dust, of your feet.

And they cast dust on their heads, and cried, weeping and mourning, saying, 'Woe, woe, the great city, wherein all who have ships in the sea became rich by reason of her costliness! because in one hour she was made desolate.