Matthew 10:27 in the King James Version
What I tell you in darkness, that speak ye in light: and what ye hear in the ear, that preach ye upon the housetops.
Context
26 Therefore don’t be afraid of them, for there is nothing covered that will not be revealed, or hidden that will not be known.
27 What I tell you in the darkness, speak in the light; and what you hear whispered in the ear, proclaim on the housetops.
28 Don’t be afraid of those who kill the body, but are not able to kill the soul. Rather, fear him who is able to destroy both soul and body in Gehenna.