Definition and Concept:
Eternal Light, in biblical theology, refers to the perpetual and unending illumination that emanates from God, symbolizing His presence, purity, truth, and guidance. This concept is deeply rooted in the nature of God as light, which is both literal and metaphorical, representing His holiness, righteousness, and the divine truth that dispels spiritual darkness.

Biblical References:

1. God as Light:
· The Bible frequently describes God as light, emphasizing His purity and the absence of darkness in Him. In 1 John 1:5 , it is stated, "This is the message we have heard from Him and announce to you: God is Light, and in Him there is no darkness at all." This verse underscores the absolute holiness and moral perfection of God.

2. Jesus as the Light of the World:
· Jesus Christ is identified as the light that has come into the world to illuminate the path to salvation. In John 8:12 , Jesus declares, "I am the light of the world. Whoever follows Me will never walk in the darkness, but will have the light of life." This statement highlights Jesus as the source of spiritual enlightenment and eternal life.

3. The Light of the New Jerusalem:
· The Book of Revelation describes the New Jerusalem, where God's glory provides eternal illumination. Revelation 21:23 states, "And the city has no need of sun or moon to shine on it, for the glory of God gives it light, and its lamp is the Lamb." This imagery portrays the ultimate fulfillment of God's promise of eternal light in the eschatological future.

4. Believers as Light:
· Christians are called to reflect God's light in the world. In Matthew 5:14-16 , Jesus tells His followers, "You are the light of the world. A city on a hill cannot be hidden. Neither do people light a lamp and put it under a basket. Instead, they set it on a stand, and it gives light to everyone in the house. In the same way, let your light shine before men, that they may see your good deeds and glorify your Father in heaven." Believers are thus encouraged to live in a way that reflects God's light and truth.

Theological Significance:

· Symbol of Divine Presence: Eternal Light signifies God's omnipresence and His active involvement in the world. It is a reminder of His constant watchfulness and guidance.

· Representation of Truth and Revelation: Light is often associated with truth and revelation in Scripture. God's light reveals the truth about Himself, the world, and humanity's need for redemption.

· Moral and Ethical Implications: The concept of light carries moral implications, urging believers to live in righteousness and avoid the deeds of darkness. Ephesians 5:8-9 exhorts, "For you were once darkness, but now you are light in the Lord. Walk as children of light, for the fruit of the light consists in all goodness, righteousness, and truth."

· Eschatological Hope: The promise of eternal light in the New Jerusalem offers hope for a future where God's presence will be fully realized, and His people will dwell in everlasting peace and joy.

Conclusion:
The concept of Eternal Light is a profound and multifaceted theme in the Bible, encapsulating God's nature, the mission of Jesus Christ, the calling of believers, and the ultimate hope of eternal communion with God. Through the imagery of light, Scripture communicates the transformative power of God's presence and the promise of a future where darkness is forever banished.