"'And you, son of man, do not be afraid of them or their words. Do not be afraid, though briers and thorns are all around you and you live among scorpions. Do not be afraid of what they say or terrified by them, though they are a rebellious house.'" NIV translation
Three times in this verse God tells the prophet to not be afraid of the rebellious people. Even though he is surrounded by the disobedient, God has assured him that He is in control and so there is no need to fear any man. The same can be said for us as we serve the Lord and face opposition.