Luke 11:33-36 - Light And Darkness
33 And no one having lighted a lamp, doth put it in a secret place, nor under the measure, but on the lamp-stand, that those coming in may behold the light. 34 'The lamp of the body is the eye, when then thine eye may be simple, thy whole body also is lightened; and when it may be evil, thy body also is darkened; 35 take heed, then, lest the light that is in thee be darkness; 36 if then thy whole body is lightened, not having any part darkened, the whole shall be lightened, as when the lamp by the brightness may give thee light.'