Nothing hidden.

26 “So do not be afraid of them, for there is nothing concealed that will not be disclosed, or hidden that will not be made known. 27 What I tell you in the dark, speak in the daylight; what is whispered in your ear, proclaim from the roofs. 28 Do not be afraid of those who kill the body but cannot kill the soul. Rather, be afraid of the One who can destroy both soul and body in hell. (Matthew 10:26-28)