Luke 11:34

11:34 The light of the body is the eye: therefore when thine eye is single, thy whole body also is full of light; but when [thine eye] is evil, thy body also [is] full of darkness.

Luke 16:8

16:8 And the lord commended the unjust steward, because he had done wisely: for the children of this world are in their generation wiser than the children of light.