'Letter' in the Bible

Now these are the words of the letter which Jeremiah the prophet sent from Jerusalem to the rest of the elders in exile and to the priests, the prophets and all the people whom Nebuchadnezzar had taken into captivity from Jerusalem to Babylon.

The letter was hand-carried by Elasah the son of Shaphan and Gemariah the son of Hilkiah, whom Zedekiah king of Judah sent to Babylon to Nebuchadnezzar king of Babylon, saying,

now therefore [continued the letter from Shemaiah in Babylon to Zephaniah in Jerusalem], why have you not rebuked Jeremiah of Anathoth, who prophesies to you?

Zephaniah the priest read this letter to Jeremiah the prophet.