A Commentary, Critical, Practical, and Explanatory on the Old and New Testaments, by Robert Jamieson, A.R. Fausset and David Brown  at sacred-texts.com
jer 36:1BARUCH WRITES, AND READS PUBLICLY JEREMIAH'S PROPHECIES COLLECTED IN A VOLUME. THE ROLL IS BURNT BY JEHOIAKIM, AND WRITTEN AGAIN BY BARUCH AT JEREMIAH'S DICTATION. (Jer. 36:1-32)
fourth year--The command to write the roll was given in the fourth year, but it was not read publicly till the fifth year. As Isaiah subjoined to his predictions a history of events confirming his prophecies (Isa. 36:1-22; Isa. 37:1-38; Isa. 38:1-22; Isa 39:1-8), so Jeremiah also in the thirty-seventh through forty-third chapters; but he prefaces his history with the narrative of an incident that occurred some time ago, showing that he, not only by word, but in writing, and that twice, had testified all that he about to state as having subsequently come to pass [GROTIUS]. At the end of Jehoiakim's third year, Nebuchadnezzar enrolled an army against Jerusalem and took it in the end of the fifth or beginning of the sixth year, carrying away captive Jehoiakim, Daniel, &c. Jehoiakim returned the same year, and for three years was tributary: then he withheld tribute. Nebuchadnezzar returned and took Jerusalem, and carried off Jehoiakim, who died on the road. This harmonizes this chapter with 2Ki. 24:1-20 and Dan. 1:1-21. See on Jer 22:19.
jer 36:2roll of a book--a book formed of prepared skins made into a roll. Compare "volume of the book," that is, the Pentateuch (Psa 40:7). It does not follow that his prophecies were not before committed to writing; what is implied is, they were now written together in one volume, so as to be read continuously to the Jews in the temple.
against . . . nations-- (Jer 25:15, &c.).
from . . . days of Josiah-- (Jer 25:3). From Josiah's thirteenth year (Jer 1:2).
jer 36:3hear--consider seriously.
return . . . from . . . evil way-- (Jon 3:8).
jer 36:4all . . . words of . . . Lord--God specially suggesting what might otherwise have escaped his memory, and directing the choice of words, as well as the substance (Joh 14:26; Joh 16:13).
jer 36:5I am shut up--not in prison, for there is no account of his imprisonment under Jehoiakim, and Jer 36:19, Jer 36:26 are inconsistent with it: but, "I am prevented," namely, by some hindrance; or, through fear of the king, to whose anger Baruch was less exposed, as not being the author of the prophecy.
jer 36:6go--on the following year (Jer 36:9).
fasting day--(See Jer 36:9). An extraordinary fast, in the ninth month (whereas the fast on the great day of atonement was on the tenth day of the seventh month, Lev 16:29; Lev 23:27-32), appointed to avert the impending calamity, when it was feared Nebuchadnezzar, having in the year before (that is, the fourth of Jehoiakim), smitten Pharaoh-necho at Carchemish, would attack Judea, as the ally of Egypt (Kg2 23:34-35). The fast was likely to be an occasion on which Jeremiah would find the Jews more softened, as well as a larger number of them met together.
jer 36:7present . . . supplication--literally, "supplication shall fall"; alluding to the prostrate attitude of the supplicants (Deu 9:25; Mat 26:39), as petitioners fall at the feet of a king in the East. So Hebrew, Jer 38:26; Dan 9:18, Margin.
jer 36:9they proclaimed . . . to all the people . . . to all, &c.--rather, "all the people . . . all the people proclaimed a fast" [MICHAELIS]. The chiefs appointed the fast by the wish of the people. In either version the ungodly king had no share in appointing the fast.
jer 36:10chamber--Baruch read from the window or balcony of the chamber looking into the court where the people were assembled. However, some of the chambers were large enough to contain a considerable number (Neh 13:5).
Gemariah--distinct from the Gemariah, son of Hilkiah, in Jer 29:3.
Shaphan--the same person as in Kg2 22:3.
scribe--secretary of state, or he who presided over the public records.
higher court--that of the priests, the court of the people being lower (Ch2 4:9).
new gate-- (Jer 26:10). The east gate.
jer 36:12scribe's chamber--an apartment in the palace occupied by the secretary of state.
princes--holding a counsel of state at the time.
Elnathan--who had already been an instrument of evil in Jehoiakim's hand (Jer 26:22-23).
Hananiah--the false prophet (Jer 28:10-17).
jer 36:14Jehudi--of a good family, as appears from his pedigree being given so fully, but in a subordinate position.
come--Instead of requiring Baruch to come to them, they ought to have gone to the temple, and there professed their penitence. But pride forbade it [CALVIN].
jer 36:16afraid, both one and other--Hebrew, "fear-stricken," they turned to one another (compare Gen 42:28). This showed, on their part, hesitancy, and some degree of fear of God, but not enough to make them willing to sacrifice the favor of an earthly king. We will surely tell the king--not the language of threatening but implying that the matter is of such moment that the king ought to be made acquainted with it, so as to seek some remedy against the divine anger.
jer 36:17What they wished to know was, whether what Baruch had read to them was written by him from memory after hearing Jeremiah repeating his prophecies continuously, or accurately from the prophet's own dictation.
jer 36:18his mouth--Baruch replies it was by the oral dictation of the prophet; Jer 36:2 accords with this view, rather than with the notion that Jeremiah repeated his prophecies from manuscripts.
ink--his specification of the "ink" implies: I added nothing save the hand, pen, and ink.
jer 36:19Showing that they were not altogether without better feelings (compare Jer 36:16, Jer 36:25).
jer 36:20chamber--There were chambers in the king's palace round the court or great hall, as in the temple (Jer 36:10). The roll was "laid up" there for safekeeping, with other public records.
jer 36:21sent Jehudi--Note how unbelievers flee from God, and yet seek Him through some kind of involuntary impulse [CALVIN]. Jehudi seems to have been the king's ready tool for evil.
jer 36:22winter house-- (Amo 3:15).
ninth month--namely, of the religious year, that is, November or December.
fire on . . . hearth--rather, the stove was burning before him. In the East neither chimneys nor ovens are used, but, in cold weather, a brazen vessel containing burning charcoal; when the wood has burned to embers, a cover is placed over the pot to make it retain the heat.
jer 36:23three or four leaves--not distinct leaves as in a book, but the consecutive spaces on the long roll in the shape of doors (whence the Hebrew name is derived), into which the writing is divided: as the books of Moses in the synagogue in the present day are written in a long parchment rolled round a stick, the writing divided into columns, like pages.
pen-knife--the writer's knife with which the reed, used as a pen, was mended. "He" refers to the king (Jer 36:22). As often as Jehudi read three or four columns, the king cut asunder the part of the roll read; and so he treated the whole, until all the parts read consecutively were cut and burnt; Jer 36:24, "all these words," implies that the whole volume was read through, not merely the first three or four columns (Kg1 22:8).
jer 36:24The king and his "servants" were more hardened than the "princes" and councillors (see on Jer 36:12; Jer 36:14; Jer 36:16). Contrast the humble fear exhibited by Josiah at the reading of the law (Kg2 22:11).
jer 36:25(See on Jer 36:16). The "nevertheless" aggravates the king's sin; though God would have drawn him back through their intercession, he persisted: judicial blindness and reprobation!
jer 36:26Hammelech--not as Margin, "of the king." Jehoiakim at this time (the fifth year of his reign) had no grown-up son: Jeconiah, his successor, was then a boy of eleven (compare Kg2 23:36, with Kg2 24:8).
hid them-- (Psa 31:20; Psa 83:3; Isa 26:20).
jer 36:27roll, and . . . words--that is, the roll of words.
jer 36:28all the former words--It is in vain that the ungodly resist the power of Jehovah: not one of His words shall fall to the ground (Mat 5:18; Act 9:5; Act 5:39).
jer 36:29say to Jehoiakim--not in person, as Jeremiah was "hidden" (Jer 36:26), but by the written word of prophecy.
saying, Why--This is what the king had desired to be said to Jeremiah if he should be found; kings often dislike the truth to be told them.
jer 36:30He shall have none to sit upon the throne--fulfilled (Kg2 24:8, &c.; 2Ki. 25:1-30). He had successors, but not directly of his posterity, except his son Jeconiah, whose three months' reign is counted as nothing. Zedekiah was not the son, but the uncle of Jeconiah, and was raised to the throne in contempt of him and his father Jehoiakim (Jer 22:30).
dead body . . . cast out-- (Jer 22:18-19).
day . . . heat . . . night . . . frost--There are often these variations of temperature in the East between night and day (Gen 31:40).
jer 36:32added besides . . . many like words--Sinners gain nothing but additional punishment by setting aside the word of Jehovah. The law was similarly rewritten after the first tables had been broken owing to Israel's idolatry (Exo 32:19, Exo 34:1).