the third

The precepts of the LORD are right, giving joy to the heart. 

The commands of the LORD are radiant, giving light to the eyes.

~Psalm 19:8

Look on me and answer, O LORD my G-d. 

Give light to my eyes, or I will sleep in death.

~Psalm 13:3

You have filled my heart with more joy than all their grain and new wine.

~Psalm 4:7

You, O LORD, keep my lamp burning; 

my G-d turns my darkness into light.

~Psalm 18:28