22The light of the body is the eye: if therefore thine eye be single, Thy whole body shall be full of light. 23But 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! . . . Matthew 6:22King James Version (KJV) http://www.biblegateway.com/audio/mclean/kjv/Matt.6