God is warning us that sin can hinder us from hearing him. Not that he’s not speaking. Not that he’s not reaching out. It is a warning, and another aspect of God’s love.
As you listen to this today, remember that God does love us. He does want to commune with us, to talk with us, to be with us. Our iniquities (chosen sins) cause divisions that separate us from being able to communicate with God.
But take heart… though we may make his job harder, God’s hand is NOT too short.