The first phrase says, “The Lord is my light.” Nowhere else is God referred to as “my light.” What can we say about it?
The blessing of the priests in the Torah includes the idea, “The Lord make his face to shine on you” (ya’eir Adonai panav eleicha).
“Lift up the light of thy countenance upon us, O Lord!” (Psa 4:7, 4:6 in Chr Bibles). “He will bring forth your vindication as the light” (37:6). “Not by their own sword did they win the land, nor did their own arm give them victory; but thy right hand, and thy arm, and the light of thy countenance” (44:4(3)). “He will go to the generation of his fathers, who will never more see the light” (49:20(19)). “That I may walk before God in the light of life” (56:14(13)).
When a person looks with favor on you, it is an ancient expression to say they show the light of their face to you. God’s favor, the light of his face, wins battles for his people. The dead are put away from the light of life.
The Lord is my hope, the source of favor I need to be well and whole, and is my very life in this hurtful world.