'Language' in the Bible

In that day, there will be five cities in the land of Egypt that speak the language of Canaan, and swear to Yahweh of Armies. One will be called "The city of destruction."

But he will speak to this nation with stammering lips and in another language;

You will no longer see the fierce people, a people of a deep speech that you can't comprehend, with a strange language that you can't understand.

Then Eliakim, Shebna and Joah said to Rabshakeh, "Please speak to your servants in Aramaic, for we understand it; and don't speak to us in the Jews' language in the hearing of the people who are on the wall."

Then Rabshakeh stood, and called out with a loud voice in the Jews' language, and said, "Hear the words of the great king, the king of Assyria!