2 Kings 20:12

Berodach-baladan He seems to have been the king of Assyria's viceroy in Babylon; and, upon the terrible slaughter in the Assyrian host, and the death of Sennacherib, and the differences among his sons, to have usurped absolute sovereignty over Babylon: and either himself or his son destroyed the Assyrian monarchy, and translated the empire to Babylon. Sent letters and a present to Hezekiah Congratulating him on his happy restoration to health, and assuring him of his esteem and friendship. According to 2 Chronicles 32:31, one end he had in view in doing this was, that he might inquire of, or concerning, the wonder done in the land, namely, the shadow going back on the dial of Ahaz. And it is probable another was, that he might obtain assistance from Hezekiah against the king of Assyria, their common enemy.