Luke 11:33-36 - Light And Darkness
33 "No one, having lighted a lamp, puts it in a cellar, or under a measure, but on a lamp-stand, that those who enter may see the light. 34 The lamp of your body is your eye. When your eye is sound, your whole body also is full of light; but, when it is evil, your body also is dark. 35 Take heed, therefore, lest the light in you be darkness. 36 If, therefore, your whole body be full of light, not having any part dark, it shall be wholly light, as when the lamp, with its bright shining, illuminates you."