Luke 11:33-36

33 "No one lights a lamp, then hides it in a drawer. It's put on a lamp stand so those entering the room have light to see where they're going.
34 Your eye is a lamp, lighting up your whole body. If you live wide-eyed in wonder and belief, your body fills up with light. If you live squinty-eyed in greed and distrust, your body is a dank cellar.
35 Keep your eyes open, your lamp burning, so you don't get musty and murky.
36 Keep your life as well-lighted as your best-lighted room."

Luke 12:2-3

2 You can't keep your true self hidden forever; before long you'll be exposed. You can't hide behind a religious mask forever; sooner or later the mask will slip and your true face will be known.
3 You can't whisper one thing in private and preach the opposite in public; the day's coming when those whispers will be repeated all over town.

(from THE MESSAGE: The Bible in Contemporary Language)