We live in a world of constant noise. Perhaps you've heard the saying "Your actions speak so loud I can't hear a word you are saying?" Our hearts hear the words Jesus never had to say because He demonstrated them on the cross.
John 21;25 puts it like this "And there are also many other things which Jesus did, the which, if they should be written every one, I suppose that even the world itself could not contain the books that should be written. Amen."
(New Release)