“The eye is the lamp of your body. When your eye is clear [spiritually perceptive, focused on God], your whole body also

is full of light [benefiting from God’s precepts].”   (AMP)

Luke 11:34 

“Where there is no vision, the people decay: but he that keeps the law is blessed.” (1599 Geneva Bible)
Proverbs 29:18

“ I pray that He [the glorious Father] will give light to the eyes of your hearts, so that you will understand the hope to which He has called you, what rich glories there are in the inheritance
He has promised His people” (CJB)
Ephesians 1:18