Jeremiah 1:8

We may learn from this verse that Jeremiah, when he observed the heavy and hard conflicts he had to undertake, was greatly disturbed; for he had not courage enough firmly and boldly to assail enemies so many and so violent. He indeed saw, that he had to do with a degenerated people, who had almost all departed from the law of God: and since they had for many years shaken off the yoke, and were petulantly exulting in their freedom, it was difficult to bring them back to obedience, and to a right course of life. It hence appears that the Prophet was restrained by this difficulty, so as not to venture to undertake the prophetic office. But God applied a suitable remedy to his fear; for what does he say? Fear not their face It appears, then, that when Jeremiah said that he was a child, he had in view, as I have already hinted, the difficulty of the undertaking; he could hardly bear to carry on contests so severe with that rebellious people, who had now become hardened in their wickedness. We hence see how he refused, in an indirect manner, the burden laid on him, for he ventured, not openly and ingenuously, and in plain words, to confess how the matter was; but God, who penetrates into the hearts of men, and knows all their hidden feelings and motives, heals his timidity by saying, Fear not their face.

Now this passage shews that corruptions had so prevailed among the chosen people, that no servant of God could peaceably perform his office. When prophets and teachers have to do with a teachable people, they have no need to fight: but when there is no fear of God, and no regard for him, yea, when men are led away by the violence of their lusts, no godly teacher can exercise his duty without being prepared for war. This, then, is what God intimates, when he bids his Prophet to be courageous; for he saw that there would be as many enemies as professed themselves to be the children of Abraham.