Thematic Bible: What is the eye

The lamp of the body is thine eye. When thine eye is clear, thy whole body also is in the light; but when it is disordered, thy body also is in darkness. Take heed therefore, that the light which is within thee be not darkness. If then thy whole body is enlightened, having no part dark, the whole will be as fully enlightened, as when a lamp with its bright shining giveth thee light.