OT-PROPHET.filter - web letters:

web@Isaiah:39:1 @ At that time, Merodach Baladan the son of Baladan, king of Babylon, sent letters and a present to Hezekiah; for he heard that he had been sick, and had recovered.

web@Jeremiah:29:25 @ Thus speaks Yahweh of Armies, the God of Israel, saying, Because you have sent letters in your own name to all the people who are at Jerusalem, and to Zephaniah the son of Maaseiah, the priest, and to all the priests, saying,