9 That was the true Light, which lighteth every man that cometh into the world.
The true Light, as we know from the context of this very chapter, is Jesus Christ. There is only one true Light. In this verse (9), Jesus is the TRUE Light. We read that he is "full of grace and truth" (verse 14).
Also, Jesus is the Light of the world (John 9:5). He says he is the Light of the world as long as He is in the world. He is the author of physical light, mental light, and spiritual light.
Jesus is also the "Light of life." In John 8:12 the verse mentions this. If we follow Him (in faith), we shall not walk in darkness "but shall have the light of life." This, of course, is speaking of spiritual light.
1 Timothy 6:16 speaks of a light "which no man can approach unto." This is the divine light of God's dwelling realm. This is where Jesus is and from where all spiritual knowledge comes. We cannot approach unto that light unless the Holy Spirit illuminates us (See Heb. 10:32).
In John 1:10 we find that Jesus, the Light, lights every man who comes into the world. This is life itself, both physical life and soul life, or that part of oneself that exists forever, that life which will be in eternity, either in Heaven or Hell. Many also believe this is intelligence that is above the animals. We as humans have reason and self-awareness that animals do not have. Jesus is the author of all life.
Not only so, but verse 11 tells us that the world was made by Him. This is spoken of often in the Bible. John 1:3, 10; Col. 1:17; Heb. 1:3, 10.
But the world knew Him not, not by nature. That knowledge was lost in our fall into sin. The only way that any person can know God is through His revelation of Himself to man. This is a wonderful miracle of grace.
He came unto his own world, his own created things, and his own people (Jews) knew him not. Even those who should have known Him did not know Him.
Luke 10:22 All things are delivered to me of my Father: and no man knoweth who the Son is, but the Father; and who the Father is, but the Son, and he to whom the Son will reveal him.BUT -- As many as received him, to them he gave power to become sons of God, even to them that believe upon His name. This is also a great miracle and gift of grace.
Have you believed upon Him? Turn now from your sins and know Him as your Savior through faith in Jesus and in His work for those who will receive Him. He lived a perfect, sinless, pure life, died on the cross to pay for sins, lay in a tomb for three days, and resurrected the third day. By this we are saved by grace through faith.
Acts 16:31 And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house.