John 3:19 that light is come into the world

a "In him was life; and the life was the light of men." (John 1:4)

"He answered and said, A man that is called Jesus made clay, and anointed mine eyes, and said unto me, Go to the pool of Siloam, and wash: and I went and washed, and I received sight." (John 9:11)

"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 lhave the light of life." (John 8:12)