Search me, O God, and know my heart! Try me and know my thoughts! And see if there be any grievous way in me, and lead me in the way everlasting! (Psalm 139:23-24)
“The lamp of the body is the eye. If your eye is sound, your whole body will be filled with light; but if your eye is bad, your whole body will be in darkness. And if the light in you is darkness, how great will the darkness be.” Matthew 6:22–23