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.
Christ is called the light of the world because we are all blind by nature, and He alone offers the remedy. Men will never seek this light until they know themselves to be in darkness; outside of Christ there is not even a spark of true light, though there may be some appearance that only dazzles the eyes.
AI summary
Though the Pharisees turned a deaf ear and opposed Him, Christ spoke again to them: I am the light of the world. One sun enlightens the whole world, and so does one Christ; there needs no more. He is the Sun of righteousness, not the light of the Jewish church only, but of all mankind.
AI summary
Commenting on John 8:12-20
Christ speaks of Himself as a divine person in conjunction with His Father, not as a mere man; therefore His testimony is firm and good. He knows whence He came and whither He goes, but the Pharisees mistook Him for Joseph's son and understood nothing of His return to glory through suffering and death.
AI summary