These are excerpts from two legends. What concepts about language do these legends suggest?

A Hindu Legend

There grew in the centre of the earth the wonderful world tree, or knowledge tree. It was so tall that it reached almost to heaven. It said in its heart, "I shall hold my head in heaven and spread my branches over all the earth, and gather all men together under my shadow, and protect them, and prevent them from separating." But Brahma, to punish the pride of the tree, cut off its branches and cast them down on the earth, when they sprang up as wata trees, and made differences of belief and speech and customs to prevail on the earth, to disperse men upon its surface.

From Wayne L. Allison, In The Beginning Was The Word

The Kaska Indians narrate that "a great darkness came on, and high winds which drove the vessels hither and thither. The people became separated. Some were driven away... Long afterwards, when in their wanderings they met people from another place, they spoke different languages, and could not understand one another".

James A. Teit, quoted in I. Velikowsky, In the Beginning.