Isaiah 36:11
Then said Eliakim and Shebna and Joah to Rabshakeh, Speak, I pray thee, to thy servants in the Syrian language; for we understand it: and speak not to us in the Jew's language, in the ears of the people that are on the wall.
Ezra 4:7
And in the days of Artaxerxes wrote Bishlam, Mithredath, Tabeel, and the rest of their companions to Artaxerxes king of Persia, and the writing of the letter was written in the Syrian language, and interpreted in the Syrian language.
Daniel 2:4
Then the Chaldeans spoke to the king in Syriac, O king, live for ever: tell thy servants the dream, and we will show the interpretation.
2 Kings 18:26-27
Then said Eliakim the son of Hilkiah, and Shebna and Joah, to Rab-shakeh, Speak, I pray thee, to thy servants in the Syrian language; for we understand it: and talk not with us in the Jews language in the ears of the people that are on the wall.