Thematic Bible: What is the eye

The lamp of the body is the eye; therefore when thine eye is sincere, thy whole body also is full of light; but when thine eye is evil, thy body also is full of darkness. Take heed therefore if the light which is in thee is darkness. If thy whole body therefore is full of light, having no part dark, the whole shall be full of light as when the bright shining of a lamp doth give thee light.