Language requires some very special designs that are rare in nature and found together only in humans. First, human language requires vocal cords, which none of the apes have. The only animals with vocal tracts are birds, but no one is suggesting that we evolved from birds.
Language also seems to require an unusual structure to the brain. The frontal area of the left hemisphere of the brain is connected to an adjacent area of the cortex called the Wernicke area. These two areas are linked by a bundle of nerve fibers. The result is a distinct brain asymmetry that is unique to humans. Even the unborn human has this asymmetry that allows it to absorb language. Development in this area of the brain stops at puberty. That is why it becomes more difficult for adults to learn a new language. Language skills can be learned only by hearing language. So-called "feral" children, who have heard no language at all, cannot be taught language after puberty for the same reason.
So where did Adam first hear language? Scripture tells us that it was the Creator God Himself who regularly spoke with Adam. This means that language is not a collection of meaningless sounds to which we have assigned meanings. The meanings and sounds have come from God, just as our unique design that makes language possible comes from God.
Therefore, language is not only for worldly purposes. We have also been given language to praise our God and Savior and to tell others who He is and what He has done!