In response to humanity's proud attempt to build a tower to the heavens, the Lord confuses the speech of his fallen creation. Our own 20th & 21st century towers (or stairways, on Led Zeppelin's account) represent no less of a monument to ourselves. Even the churches we build tend to serve the god of our own glory. And so even now, our inability to understand one another prevents us from reaching the divine heights where peace exists. The relationship between creature and Creator is shown to be in desperate need of a bridge: one which only Christ will later build.