If there is going to be a light for the world, it will be Jesus. Jesus, the light of the world. Jesus affirms here that He is God incarnate. Jesus also described His people as being like light, which is on the outside. Jesus is God, and God cannot change. Jesus is absolutely pure.
The light speaks of the testimony of a follower of Christ, revealing and illuminating the truth. Those who heard Jesus speak that day in the Treasury of the Temple would have thought immediately of the pillar of cloud and fire that led Israel during their journey to the Promised Land. See, darkness covers the earth and thick darkness is over the peoples, but the LORD rises upon you and His glory appears over you. Refrain: We’ll walk in the light, beautiful light. Jesus, the light of the world. Jesus is absolutely pure. It is closely related to the parables of Salt and Light and Lamp under a bushel.

I want us to consider the importance and blessings of Jesus as the Light of the world. Glory to the newborn King, Jesus, the light of the world. Join the triumph of the skies. When Jesus said to the Jews, “I am the light of the world”, He was affirming His Divinity.
Just as a soldier follows his captain, and a slave his master, so are we are to follow His commands in Scripture. Jesus, the light of the world; Life and mercy in His name, Jesus, the light of the world. Light … Arise, shine, for your light has come, and the glory of the LORD rises upon you.

It is Jesus or darkness. 2 Joyful, all you nations, rise. Whoever follows me will not walk in darkness, but will have the light of life” (John 8:12).

Jesus, the light of the world, the Great "I AM" is our commander.

THE CONSTANCY OF HIS LIGHT (John 1:1-2) The one constant in the physical universe is the speed of light. One ceremony for the Jewish Feast of Tabernacles was the lighting of four great candelabra in the Court of Women in memory of God's presence.

James 1:17. You Are the Light of the World Jesus was speaking to a crowd of just ordinary folks. *Jesus is the light of the world to bring the revelation of salvation to all the peoples of the world. Nations will come to your light, and kings to the brightness of your dawn. O, shine all around us by day and by night. When Christ came into the world, there was no light. Jesus the light of the world. He whofollows Me shall not walk in darkness, but have the light of life.” Jesus Defends His Self-Witness 13 The Pharisees therefore said to Him, “You bear witness of Yourself; Your witness is not [l]true.” A - Bible Gateway “You are the light of the world.

Jesus’s being “the light of the world” means the world has no other light than him.