Berean Study Bible (BSB) - Isaiah 39:1 >

At that time Merodach-baladan son of Baladan king of Babylon sent letters and a gift to Hezekiah, for he had heard about Hezekiah’s illness and recovery.

Jewish Publication Society of America Version (JPS1917) - Isaiah 39:1 >

At that time Merodach-baladan the son of Baladan, king of Babylon, sent a letter and a present to Hezekiah; for he heard that he had been sick, and was recovered.