We are living in a time when secrets are hard to keep. The big electronic search companies like Google and Yahoo and the social media platforms know more about us than we want to think. Our smart cell phones track every place we take them. Our computers track every search we make on the internet.
Jesus warned the Disciples that a time will come when secrets will be revealed. The context is a warning about the hypocrisy of the Pharisees. Jesus warns us that we can't say one thing and do another, we can't look good on the outside when we are rotten on the inside. We need to be people of integrity.