2 Kings
King James Version (KJV)

“Then Rabshakeh stood and cried with a loud voice in the Jews' language, and spake, saying, Hear the word of the great king, the king of Assyria:”
King James Version (KJV)
18:28 Jews language - The tradition of the Jews is, that Rabshaketh was an apostate Jew. If so, his ignorance of the God of Israel was the less excusable, and his enmity the less strange: for apostates are usually the most bitter and spiteful enemies.