'Letters' in the Bible

And Hezekiah taketh the letters out of the hand of the messengers, and readeth them, and Hezekiah goeth up to the house of Jehovah, and Hezekiah spreadeth it before Jehovah.

At that time hath Merodach-Baladan, son of Baladan, king of Babylon, sent letters and a present unto Hezekiah, when he heareth that he hath been sick, and is become strong.