Part of a larger conversation. Please see: Did Jesus Lie

In John 8:12 Jesus says,

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.John 8:12

It should be clear that any Jew who had heard this would understand immediately what Jesus was referring to; the notion that Israel was a Light to the Nations:

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