“Nothing is hidden that will not be revealed, and nothing is secret that will not be made known.”
Why guard against hypocrisy, such as the Pharisees demonstrated? v. 1 Because it will all come to light in the future. Fear of man causes dissimulation, v. 4, but fear of God should lead to honesty and transparency, v. 5.
Human drama derives from secrets. (Read any novel.) Divine redemption occurs from revelation and knowledge. We move from one to the other by confession.