The claim that Jesus made “I am the Light of the world” was true. It was a fulfillment of the prophecy in Isaiah
2 The people who walk in darkness will see a great light.For those who live in a land of deep darkness, a light will shine.-Isaiah 9:2 (NLT)
Where the light shines, it dispels darkness, the two cannot abide together. Those that follow the light of Jesus can walk without stumbling and they will be led to eternal life. When we were being led by the flesh, we walked in darkness and misjudged people just as the Pharisees and the religious leaders did. We were unable to see and understand the truth. When the Holy Spirit shined the Light of Jesus upon us, we could no longer live in darkness. Filled with the Holy Spirit, we are now the light that shines in the darkness of the world.
14 “You are the light of the world—like a city on a hilltop that cannot be hidden.15 No one lights a lamp and then puts it under a basket. Instead, a lamp is placed on a stand, where it gives light to everyone in the house.—Matt. 5:14, 15 (NLT
This reminds me of the old hymn by Philip Paul Bliss. The hymn was inspired by a story told by the well known preacher, Dwight L Moody.
Brightly beams our Father’s mercy
From His lighthouse evermore,
But to us He gives the keeping
Of the lights along the shore.
Let the lower lights be burning!
Send a gleam across the wave!
Some poor fainting, struggling seaman
You may rescue, you may save.
We are the lower lights, we must continue to shine to lead others safely to the shore.