John 8:12 Again Jesus spoke to them, saying, “I am the light of the world. Whoever follows me will not walk in darkness, but will have the light of life.”
The “Mishnah” or the first recording of the Jewish oral traditions or “oral Torah” states that during the Feast of the Tabernacles in Jerusalem; four huge lamps were lit in the temple court and and exuberant celebration took place under their light.
“Men of piety and good works” danced through the night, holding burning torches in their hands and singing songs and praises. The Levitical orchestras cut loose, and some sources state that this went on every night of the Feast of Tabernacles, the light from the temple area shedding its glow all over Jerusalem.
In this context, Jesus declares “I AM THE LIGHT OF THE WORLD”!
Ironically this prepares the way for Chapter 9, where the outworking of Jesus’ claim to be the light (9:5) is depicted in a miracle by which a blind man is made to see, while others who think they see remain blind to the light.