Psalm 19:3 They have no speech, they use no words; no sound is heard from them.
How many times have you looked up at the night sky and marvelled at the number of stars out there? If you are able to find a dark place where there are no street lights, it looks even more magnificent!
Now imagine each one of those stars declaring the glory of God!
No matter how many people you hear shouting out the name of Jesus, it will never compare the the whole of heaven shouting out His name!