Genesis 11:1
Now the whole earth [had] one language and the same words.
Zephaniah 3:9
Because then I will {make the speech of the nations pure}; that all of them might call on the name of Yahweh, to serve him {in unison}.
Acts 2:6
And [when] this sound occurred, the crowd gathered and was in confusion, because each one was hearing them speaking in his own language.
Isaiah 19:18
On that day, there will be five cities in the land of Egypt that speak the {language} of Canaan and swear an oath to Yahweh of hosts. One will be called "City of the Sun."
Treasury of Scripture Knowledge
Summary
And the whole earth was of one language, and of one speech.
Bible References
Was
Isaiah 19:18
On that day, there will be five cities in the land of Egypt that speak the {language} of Canaan and swear an oath to Yahweh of hosts. One will be called "City of the Sun."
Zephaniah 3:9
Because then I will {make the speech of the nations pure}; that all of them might call on the name of Yahweh, to serve him {in unison}.
Acts 2:6
And [when] this sound occurred, the crowd gathered and was in confusion, because each one was hearing them speaking in his own language.