“The people walking in darkness have seen a great light; on those living in the land of deep darkness a light has dawned.” – Isaiah 9:2
“…the people living in darkness have seen a great light; on those living in the land of the shadow of death, a light has dawned.” – Matthew 4:16
“…to shine on those who live in darkness and in the shadow of death, to guide our feet into the path of peace.” – Luke 1:79
“For you were once darkness, but now you are light in the Lord. Walk as children of light,” – Ephesians 5:8
“But you are a chosen people, a royal priesthood, a holy nation, a people for God’s own possession, to proclaim the virtues of Him who called you out of darkness into His marvelous light.” – 1 Peter 2:9
“When Jesus spoke again to the people, he said, “I am the light of the world. Whoever follows me will never walk in darkness, but will have the light of life.” – John 8:12
What more need be said?
The rest are details and commentary.
It’s the fourth day of Christmas. ## (Quote credits, Bible Hub)