Albert Barnes Commentary Jeremiah 26:1

"In the beginning of the reign of Jehoiakim the son of Josiah, king of Judah, came this word from Jehovah, saying," — Jeremiah 26:1 (ASV)

Jeremiah 26 is a narrative of the danger to which Jeremiah was exposed because of the prophecy contained in Jeremiah 7, and it should be read in connection with it. Jeremiah 26:4–6 contains a summary of the prediction contained in Jeremiah 7, and that, in turn, is only an outline of what was a long address.