Matthew Henry's Commentary
The word that Jeremiah the prophet spake unto Baruch the son of Neriah, when he had written these words in a book at the mouth of Jeremiah, in the fourth year of Jehoiakim the son of Josiah king of Judah, saying,
45:1-5 An encouragement sent to Baruch. - Baruch was employed in writing Jeremiah's prophecies, and reading them, see ch. Jer 36, and was threatened for it by the king. Young beginners in religion are apt to be discouraged with little difficulties, which they commonly meet with at first in the service of God. These complaints and fears came from his corruptions. Baruch had raised his expectations too high in this world, and that made the distress and trouble he was in harder to be borne. The frowns of the world would not disquiet us, if we did not foolishly flatter ourselves with the hopes of its smiles, and court and covet them. What a folly is it then to seek great things for ourselves here, where every thing is little, and nothing certain! The Lord knows the real cause of our fretfulness and despondency better than we do, and we should beg of him to examine our hearts, and to repress every wrong desire in us.
Thus saith the LORD, the God of Israel, unto thee, O Baruch;
Thou didst say, Woe is me now! for the LORD hath added grief to my sorrow; I fainted in my sighing, and I find no rest.
Thus shalt thou say unto him, The LORD saith thus; Behold, that which I have built will I break down, and that which I have planted I will pluck up, even this whole land.
And seekest thou great things for thyself? seek them not: for, behold, I will bring evil upon all flesh, saith the LORD: but thy life will I give unto thee for a prey in all places whither thou goest.