Yet another text commonly abused by Trinitarians. The context tells us plainly that Jesus is referring back to verse 12: "I am the light of the world.... unless you believe that I am, you will die in your sins."

Also, " "I am the light of the world.... I am not of this world.... unless you believe that I am, you will die in your sins."

"You are the light of the world." Matthew 5:14
- Jesus to his followers

"They are not of the world just as I am not of the world." John 17:16