I came across this article recently, and Bob Kauflin does a beautiful job explaining why words are important in our worship. There are so many good thoughts. If you don't have time now, definitely bookmark this so you can read it later.
Words enable us to think and say the same things together, rooting our unity in the gospel and not simply in a shared experience. A hundred people listening to a song being played can have a hundred different thoughts about what is happening. As my friend Jon Payne has said, “A picture is worth 1000 words. The problem is, the viewer gets to decide what those words are.” Bob Kauflin
But the most obvious fact about praise — whether of God or anything — strangely escaped me. I thought of it in terms of compliment, approval, or the giving of honor. I had never noticed that all enjoyment spontaneously overflows into praise... I think we delight to praise what we enjoy because the praise not merely expresses but completes the enjoyment; it is its appointed consummation. C.S. Lewis
Worship Without Words by Bob Kauflin