Not sure exactly what you're saying, but: Bible translators regularly translate the Bible into other languages, including the kind of "tribal" languages you ref

Not sure exactly what you're saying, but: Bible translators regularly translate the Bible into other languages, including the kind of "tribal" languages you refer to. The people they translate for are fine with saying "there are fish in the pond over there", and they can also talk about abstract concepts. They may not have vocabulary for all the same concepts we have, whether abstract ("justification") or concrete (the Inuit didn't have words for sheep), but they have plenty of words for things for which we don't have individual words, and those other concepts can be described in phrases. And of course they have grammars.