Ezekiel 2:6-7

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. And thou shalt speak my words unto them, whether they will hear, or whether they will forbear; for they are most rebellious.