Kabbalah zu Bereschit 10:5

And from there the Snahedrin knew 70 languages, which they are the 70 faces (interpretations) of the Torah. Because they are 70 languages from the side of the evil kingdom, (and) all of them are separate (unrelated languages). That is what it is written (Genesis 10:5): From these the maritime nations split up. in their lands, to their languages (Translators note: the Zoher uses here a different text for the verse than the traditional text), all of these 70 languages are are in separation from each other.