The Chiasm of John 8:12
A chiasm is a literary structure where vocabulary of the first section of a passage is repeated in the second. The center of the chiasm is typically the climax of the passage. In John 8:12 the center and climax is "He who follows Me will not walk in the darkness." https://www.howthebiblefitstogether.org/files/John-8.12a-Chiasm.pdf