Jeremiah 1:6-8

Young's Literal Translation

⁶ And I say, `Ah, Lord Jehovah! lo, I have not known -- to speak, for I [am] a youth.'

⁷ And Jehovah saith unto me, `Do not say, I [am] a youth, for to all to whom I send thee thou goest, and all that I command thee thou speakest.

⁸ Be not afraid of their faces, for with thee [am] I to deliver thee, -- an affirmation of Jehovah.'