John 8:12
“Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life.”
King James Version (KJV)
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Jesus makes this declaration in the temple courts, likely against the backdrop of the great lamps lit during the Feast of Tabernacles. He presents himself as the light for all people.
What Does John 8:12 Mean?
John 8:12 records another of Jesus' great "I am" sayings: "I am the light of the world." The prologue had announced that the true Light shines for everyone; now Jesus declares plainly that he himself is that Light, and he extends a personal promise to those who follow him.
To call himself "the light of the world" is a sweeping claim -- not a light for one nation or one age, but for the whole world. Light brings sight, warmth, guidance, and safety; it drives away the dark. Jesus offers all of this to anyone who will follow him. The promise is conditioned on following: "he that followeth me." The word pictures a traveler walking behind a guide, staying close and going where the leader goes. To such a one Jesus promises, "shall not walk in darkness, but shall have the light of life." The believer is not left to grope through life's confusion; the very life and light of Christ illuminate the path. "The light of life" is light that comes from him and leads into true life. To follow Jesus, then, is to walk in the light no matter how dark the surroundings, with the assurance that the One you follow knows the way.
In the Original Language
The Greek "to phos tou kosmou" means "the light of the world." "Akoloutheo" (followeth) pictures following a leader closely, and "to phos tes zoes" means "the light of life."
Cross References
“That was the true Light, which lighteth every man that cometh into the world.”
- John 1:9
“I am come a light into the world, that whosoever believeth on me should not abide in darkness.”
- John 12:46
“The LORD is my light and my salvation; whom shall I fear? the LORD is the strength of my life; of whom shall I be afraid?”
- Psalm 27:1
Application
When the way ahead seems dark, follow Jesus closely. He is the light of the world, and those who walk with him are never left to grope in darkness.