Jeremiah 1:7-9

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.

Then the LORD put forth his hand, and touched my mouth. And the LORD said unto me, Behold, I have put my words in thy mouth.