John McWhorter  finished a description of the three consonant structure of words in Semitic languages, such as Hebrew and Arabic, with these words:
That is what makes a Semitic language. This system with the three consonants is very rare in the world. There are only a few other languages in the world that act like this, and they are, oddly enough, just a few (depending on how you count few you could say one and a half) Native American languages of California. And there’s no relationship. If there’s perhaps some story about wandering Jews who wound up as hunter gatherer Indians in California, I’m not aware of it. But I think there’s no relationship, and so this kind of grammar only arose anywhere else on Earth once.
So remember, there are no traces whatsoever of Lehi’s children in America. Except for funny anomalies that none should give a second thought.
 John McWhorter, Senior Fellow in Public Policy, Manhattan Institute, former Associate Professor in Lingustics at UC Berkeley, in “Lecture 10: Language Families–Diversity of Structures,” of The Story of Human Language, The Teaching Company.