Jeremiah 29:29 continues the same episode: Zephaniah reads the letter Jeremiah sent, directly following v.25.

Jeremiah 29:1 introduces the letter to the exiles, setting the context for the false prophet's letter mentioned here.

Jeremiah 21:1 introduces the same Zephaniah (son of Maaseiah), sent by Zedekiah to Jeremiah—key person link.

Jeremiah 37:3 again features Zephaniah son of Maaseiah, sent by Zedekiah to ask Jeremiah to pray—consistent person reference.

Jeremiah 52:24 mentions Zephaniah as second priest, possibly the same man, but context is Babylon's capture of Jerusalem.

In 1 Kings 21:8-13, Jezebel writes letters in Ahab's name to falsely accuse Naboth, just as Shemaiah wrote false letters against Jeremiah.

In 2 Chronicles 32:17, Sennacherib writes letters insulting God, paralleling Shemaiah's letters slandering God's prophet.

In Ezra 4:7-16, adversaries write a letter accusing the Jews of rebellion, just as Shemaiah wrote falsely accusing Jeremiah.

In Nehemiah 6:5, Sanballat sends an open letter to intimidate Nehemiah, mirroring Shemaiah's letters to intimidate Jeremiah.

2 Kings 25:18-21 parallels Jeremiah 52:24, listing Zephaniah the second priest, likely the same as in 29:25.