In today's Gospel passage Jesus makes it clear that nothing we do can ever be hidden or done in secret. He knows all that we do.
He also encourages us to listen more; to listen to Him and to His Word. The more we listen to the Word of God the more we will receive....
From Luke 8:16-18
'For nothing is hidden but it will be made clear, nothing secret but it will be known and brought to light. So take care of how you hear; for anyone who has will be given more; from anyone who has not, even what he thinks he has will be taken away.'