From the 7th century BCE, Aramaic became the lingua franca of the Middle East. It became the language of diplomacy and trade, but it was not yet used by ordinary Hebrews. As described in 2 Kings 18:26, the messengers of Hezekiah, king of Judah, demand to negotiate with ambassadors in Aramaic rather than "Judean" (or "Judahite") so that the common people would not understand.