Jeremiah 1:17

Thou, therefore, gird up thy loins, like a soldier or a man on a journey, to remove every hindrance in traveling, and arise and speak unto them all that I command thee, the fact of his being the Lord's messenger and representative once more being stressed; be not dismayed at their faces, shrinking back before them, lest I confound thee before them, so that he would be rejected, crushed, and overcome before them.