Jeremiah 1:7

But the Lord said unto me, Say not, I am a child, in an effort to make his youth and inexperience an excuse for refusing to follow the Lord's call; for thou shall go to all that I shall send thee, and whatsoever I command thee thou shalt speak. It was not a matter to be argued, but the Lord, by a categorical declaration of His will, commissioned Jeremiah. No matter to which nations and princes the Lord would bid him go, he was cheerfully to declare God's counsel and will, regardless of any show of hostility.