The problem with the basic questions lies with what you think "God" is. People have all kinds of ideas about that, but those are just ideas, just thoughts. Can anyone say what "God" is with any certainty? I doubt it, but people are convinced they "know" God and they can be quick to tell others that they should have the same thoughts and beliefs as they do.
Perhaps whatever God truly is he/she/it "speaks" the language of silence, but because people are looking for some special and noteworthy communication based on false beliefs they can't hear the silence through the turmoil of their hearts and minds. Perhaps people need to learn the language of silence in order to "hear" what God is saying.