Matthew 6:23 in the King James Version
But if thine eye be evil, thy whole body shall be full of darkness. If therefore the light that is in thee be darkness, how great is that darkness!
Context
22 “The lamp of the body is the eye. If therefore your eye is sound, your whole body will be full of light.
23 But if your eye is evil, your whole body will be full of darkness. If therefore the light that is in you is darkness, how great is the darkness!
24 “No one can serve two masters, for either he will hate the one and love the other, or else he will be devoted to one and despise the other. You can’t serve both God and Mammon.