Jeremiah

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

But the Lord said unto me, Say not, I am a child: for thou shalt go to all that I shall send thee, and whatsoever I command thee thou shalt speak.

Be not afraid of their faces: for I am with thee to deliver thee, saith the Lord.

And the hand of the Lord was on Elijah; and he girded up his loins, and ran before Ahab to the entrance of Jezreel.

So the spirit lifted me up, and took me away, and I went in bitterness, in the heat of my spirit; but the hand of the Lord was strong upon me.