Ezekiel 2:4, 6

And the children are impudent and stiffhearted: I do send thee unto them; and thou shalt say unto them, Thus saith the Lord Jehovah.

And thou, son of man, be not afraid of them, neither be afraid of their words, though briers and thorns are with thee, and thou dost dwell among scorpions: be not afraid of their words, nor be dismayed at their looks, though they are a rebellious house.