Albert Barnes Commentary Jeremiah 36:32

"Then took Jeremiah another roll, and gave it to Baruch the scribe, the son of Neriah, who wrote therein from the mouth of Jeremiah all the words of the book which Jehoiakim king of Judah had burned in the fire; and there were added besides unto them many like words." — Jeremiah 36:32 (ASV)

Many like words—The second scroll was thus a more complete record of the main lessons taught by Jeremiah during the long course of his inspired ministry.