Genesis 11:5

And in the three and thirtieth jubilee, in the first year in the second week, Peleg took to himself a wife, whose name was Lomna the daughter of Sina'ar, and she bare him a son in the fourth year of this week, and he called …

1. Now the sons of Noah were three, - Shem, Japhet, and Ham, born one hundred years before the Deluge. These first of all descended from the mountains into the plains, and fixed their habitation there; and persuaded others who were greatly afraid of the …

AGAIN, whereas Moses wrote an account of the building of the tower, and how from one language men passed into the confusion of many dialects, the author just before mentioned, in his work entitled Of Assyrian History, bears the like testimony, speaking as follows: [ABYDENUS] 'But there are some who say that the men who first arose out of the earth, being puffed up by their strength and great stature, and proudly thinking that they were better than the gods, raised a huge tower, where Babylon now stands: and when they were already nearer to heaven, the winds came to the help of the gods, and overthrew their structure upon them, the ruins of which were called Babylon. And being up to that time of one tongue, they received from the gods a confused language; and afterwards war arose between Cronos and Titan. [JOSEPHUS] 'And the place in which they built the tower is now called Babylon, because of the confusion of what at first was clear in their language. For the Hebrews call confusion "Babel."

They foolishly began to build a tower that touched the stars and thought they might be able to climb the skies with it. But God, seeing that their work proceeded because they spoke the same language, intervened and caused them to speak different languages.

And if any one cites the confusion of tongues that took place at the building of the tower, as contradicting what I have said, not even there is God spoken of as creating men's languages, but as confounding the existing one, that all might not hear all. For when all lived together and were not as yet divided by various differences of race, the aggregate of men dwelt together with one language among them; but when by the Divine will it was decreed that all the earth should be replenished by mankind, then, their community of tongue being broken up, men were dispersed in various directions and adopted this and that form of speech and language, possessing a certain bond of union in similarity of tongue, not indeed disagreeing from others in their knowledge of things, but differing in the character of their names. For a stone or a stick does not seem one thing to one man and another to another, but the different peoples call them by different names. So that our position remains unshaken, that human language is the invention of the human mind or understanding. For from the beginning, as long as all men had the same language, we see from Holy Scripture that men received no teaching of God's words, nor, when men were separated into various differences of language, did a Divine enactment prescribe how each man should talk. But God, willing that men should speak different languages, gave human nature full liberty to formulate arbitrary sounds, so as to render their meaning more intelligible.