Luke 11:34-36

Young's Literal Translation

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.'