2 Kings 18:26
Then said Eliakim the son of Hilkiah, and Shebna, and Joah, to Rabshakeh, Speak, I pray you, to your 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.
Torrey's Topical Textbook—AKJV

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 tongue, and interpreted in the Syrian tongue.
Torrey's Topical Textbook—AKJV

Daniel 2:4
Then spoke the Chaldeans to the king in Syriack, O king, live for ever: tell your servants the dream, and we will show the interpretation.
Torrey's Topical Textbook—AKJV