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.”
12. I am the light of the world. Those who leave out the former narrative, which relates to the adulteress, “De la femme adultere.” connect this discourse of Christ with the sermon which he delivered on the last day of the assembly.
The rest of the chapter is taken up with debates between Christ and contradicting sinners, who cavilled at the most gracious words that proceeded out of his mouth. It is not certain whether these disputes were the same day that the adulteress was discharged; it is probable they were, for the evangelist mentions no other day, and takes notice (Joh 8:2) how early Christ began that day's work.
Commenting on John 8:12-20
Jesus answered and said unto them,.... In vindication of himself, and his testimony: though I bear record of myself, yet my record is true; which seems contradictory to what he says, in Joh 5:31, and may be reconciled thus; there he speaks of himself as man, and in the opinion of the Jews, who took him to be a mere man; and also as alone...