Shared ground
Jeremiah 45:1 is a scene-setting heading. It says a specific “word” (word) from Jeremiah is directed to a specific person: Baruch son of Neriah. It also explains how the message was handled: Baruch wrote “these words” in a book/scroll while receiving them “from the mouth of Jeremiah,” presenting Jeremiah as the source and Baruch as the writer.
The verse anchors the moment in history by dating it to the fourth year of King Jehoiakim of Judah. That date signal matters: it frames what follows as tied to a remembered crisis period, not as a general saying.
Where interpretation differs (only where needed)
Two main questions come up.
First, what does “these words” refer to? Some read it as the words of the larger scroll Baruch wrote for Jeremiah in the earlier narrative (compare Jeremiah 36:4), so Jeremiah 45 would be a personal message that came during that same writing project. Others read it more narrowly as pointing forward to the short message in Jeremiah 45 itself (“these words” = the words that follow).
Second, what is emphasized by “from the mouth of Jeremiah”? Many take it straightforwardly as dictation. Others think the main point is authorization: Baruch’s writing is not independent; it carries Jeremiah’s prophetic sourcing.
Why the disagreement exists
The verse uses a brief reference (“these words”) without spelling out the full scope. Also, Jeremiah’s book is not arranged strictly by date, so readers differ on whether the heading is tying Jeremiah 45 tightly to the Jeremiah 36 scroll episode or simply using similar scribal language.
What this passage clearly contributes
Explicitly, it identifies the messenger (Jeremiah), the recipient (Baruch son of Neriah), the method (spoken by Jeremiah, written by Baruch in a book/scroll), and the date (fourth year of Jehoiakim, king of Judah). By inference, it also supports the idea that Jeremiah’s words were preserved through a scribal process and attached to specific historical moments, giving the following message a concrete setting rather than an abstract theme.