Cross reference
Genesis 11:1
1 And the whole earth was of one language and of one speech.
Zephaniah 3:9
9 For then will I turn to the peoples of a pure language, that they may all call upon the name of Jehovah, to serve him with one consent.
Isaiah 19:18
18 In that day there shall be five cities in the land of Egypt that speak the language of Canaan, and swear to Jehovah of hosts; one shall be called The city of destruction.
Acts 2:6
6 And when this sound was heard, the multitude came together, and were confounded, because that every man heard them speaking in his own language.