John Gills Exposition of the Bible Commentary - Jeremiah 36:9
And it came to pass in the fifth year of Jehoiakim the son of Josiah king of Judah, in the ninth month ,.... This was a different time of reading the book from the former, enjoined by the prophet, and performed by Baruch, Jeremiah 36:6 ; that was on the tenth day of the seventh month, in the fourth year of Jehoiakim; this was in the fifth year of his reign, and in the ninth month of the year, a year and two months after the former, as it should seem; but Jehoiakim's fifth year beginning in... read more
Matthew Henry's Complete Commentary - Jeremiah 36:9-19
It should seem that Baruch had been frequently reading out of the book, to all companies that would give him the hearing, before the most solemn reading of it altogether which is here spoken of; for the directions were given about it in the fourth year of Jehoiakim, whereas this was done in the fifth year, Jer. 36:9. But some think that the writing of the book fairly over took up so much time that it was another year ere it was perfected; and yet perhaps it might not be past a month or two; he... read more