The Gospel of John records many powerful and profound statements of Jesus. Among the most well-known ones can be found in John 8:12: Jesus proclaimed, “I am the light of the world. He who follows Me shall not walk in darkness, but have the light of life.”
Interestingly, such a bold, inspiring statement was made in a very unexpected setting — a woman caught in adultery was brought to the temple by the teachers of the law and the Pharisees.
When these religious leaders might be thinking they were exposing a secret thing and expecting Jesus to condemn a sinful act, His response was brilliant — piercing through the hearts of those who heard it (John 8:7-9).
Jesus opened their eyes with the truth that “all have sinned — there is none righteous” (Psalm 14:2-3). Therefore, only a holy, righteous, and perfect God can judge, forgive, and save sinners. Jesus revealed that He alone has the authority to bring secret things to light (Luke 8:17).
As a result, the scribes and the Pharisees all left — no one condemned the woman — and so Jesus lovingly let her go and asked her to “sin no more” (John 8:11). I believe Jesus completely set her free at that moment because she had seen the Light.
Let us now see there are at least five reasons why Jesus said, “I am the Light of the world.”
1. Jesus Reveals His Identity as the Lord God — The Life Giver
First, Jesus said, “I AM…” implicitly revealing Himself as Yahweh, the great I AM, who said to Moses, “I AM WHO I AM” (Exodus 3:14). Later in the same chapter, Jesus again proclaimed to the Jews, “Most assuredly, I say to you, before Abraham was, I AM” (John 8:58).
Moreover, Jesus also fulfilled the Old Testament’s prophecies that the promised Messiah, the Servant of the Lord, has come as a light (Isaiah 9:2; 42:6) and that God, the Holy One, came with the brightness of the light (Habakkuk 3:3-4).
This Christ’s divine nature was later affirmed by John the Apostle when he wrote, “This is the message we have heard from Him and announce to you, that God is Light, and in Him there is no darkness at all” (1 John 1:5).
The psalmist also wrote that God, like the sun, is the ultimate source of life and all good things — grace and glory — in life (Psalm 84:11).
This is consistent with John’s testimony that all things were made through Jesus, who is the Word of God:
“God created everything through Him, and nothing was created except through Him. The Word gave life to everything that was created, and His life brought light to everyone. The light shines in the darkness, and the darkness can never extinguish it” (John 1:3-5, NLT).
2. Jesus Reveals Himself as Light So the World Will Believe in Him
God’s plan of salvation for mankind is made clear by sending Jesus to the world He created:
“For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life” (John 3:16).
John the Baptist describes that Jesus comes to take away the sin of the world (John 1:29).
Again, this witness is in accordance with the prophet Isaiah’s prediction that Jesus is the promised Son and Servant, given by God to be a light to the world (the Gentiles or unbelievers), such that His salvation reaches the ends of the earth (Isaiah 49:5-6; 9:1-2).
Jesus Himself affirmed this when He said, “He who believes in Me, believes not in Me but in Him who sent Me. And he who sees Me sees Him who sent Me. I have come as a light into the world, that whoever believes in Me should not abide in darkness” (John 12:44-46, NKJV).
God’s promise of restoration will finally be fulfilled when He makes all things new and where Jesus Himself will be the light in the holy city of God in a new heaven and earth (Revelation 21:23; 22:5).
3. Jesus Is the Light, So Believers Should Not Abide in Darkness
While it is the Lord (Yahweh) Himself who formed the light and created darkness (Isaiah 45:7) — showing His authority and sovereignty over all things — His plan for us who believe in Christ is to bring us out of the darkness.
I believe darkness itself is not necessarily a bad thing; however, people who reject God misuse darkness to hide their evil deeds.
Jesus revealed that those who do not believe in Him are living under condemnation: they deliberately choose darkness over light — in other words, they want to remain in darkness — because they do not want their sins to be exposed by the light (John 3:18-20).
In contrast, those who believe in Jesus choose the truth: they come to the light so that others can see their good deeds have been done in God (John 3:21).
Here, Jesus essentially brings separation between the children of light — who believe in Him —and the children of this world — who hate God and live in darkness, not knowing where they are going (John 12:35-36).
As we believe in Jesus, we walk in the light and know where we are going because His Word is “a lamp to our feet and a light to our path” (Psalm 119:105). As we abide in Christ’s Word, we will know the truth that makes us free (John 8:31-32).
We are free from the bondage of sin, free from fear of death, and free to love and serve the Lord and our neighbors. No longer do we live under condemnation because we are in [belong to] Christ Jesus (Romans 8:1).
4. Jesus Is the Light, So We Can Have Fellowship with Him
To know God and fellowship with Him, we must come to the light so that the eyes of our hearts may be enlightened to see His truth and to know with confidence the hope we have in Christ (Ephesians 1:18).
We simply cannot have fellowship with God and walk in darkness (1 John 1:6) — this means that if we truly live in Christ, we do not keep on sinning because we have been born of God and His seed [the new life He gave] remains in us (1 John 3:6, 9).
Because of Jesus, we can have peace with God. Because of Jesus, we know that we are loved by the heavenly Father, who is the source of every good and perfect gift (James 1:17).
Because of Jesus, we could live with meaning and purpose to glorify God — not with our own strength, but by God’s power that works in and through us (2 Corinthians 4:6-7).
5. Jesus Is the Light, So We Can Have Fellowship with One Another
As we put our faith in Christ, we become God’s children. This is our new identity — the children of light. Jesus even declares that we are the light of the world:
“You are the light of the world. A city set on a hill cannot be hidden. Nor do people light a lamp and put it under a basket, but on a stand, and it gives light to all in the house. In the same way, let your light shine before others, so that they may see your good works and give glory to your Father who is in heaven” (Matthew 5:14-16).
Our life mission is to tell the world of Jesus — of His greatness (divine nature) and His goodness (wonderful acts) — who called us out of darkness into His marvelous light (1 Peter 2:9).
Walking in the light not only brings reconciliation and fellowship with God but also enables us to forgive and fellow with others (1 John 1:7).
It is impossible for us to fulfill the greatest commandment — to love God with all our hearts, souls, and minds and to love people as ourselves — if we do not walk in the light.
Ultimately, it is Christ’s light [wisdom, love, and truth] that enables us to perform good works, bringing honor and glory to our heavenly Father.
For further reading:
Why Did God Say, 'Let There Be Light'?
What Is the Power of God’s Light Over Darkness?
What Does it Mean That the Lord Is My Light and My Salvation?
Photo Credit: ©iStock/Getty Images Plus/ipopba
Philip Wijaya, Ph.D. currently lives in Vancouver, Canada with his wife, Sandra, and their daughter, Shalom. His interest in science and faith in God has motivated him to actively write in his personal blog (philipwijaya.com), in addition to his professional research work in the area of clean energy and chemical engineering. In his leisure time, he enjoys sports, football games, music, and traveling with family.
