There is a moment in Exodus 19 where Moses heads up the mountain to be with the Lord. His absence revealed the sound in the heart of the people, they may not have noticed the sound, due to the fact that the sound was reflected by others around them. However he noticed the sound when he returned. When there is an absence of the presence of God in our lives there is a sound that is produced, we may not notice, because we are busy, distracted, but there is a sound that others hear. We need to make sure that we end the absence of God's presence in our lives.