What does the Bible say about the light of God in believers?

According to Isaiah 40:1, believers are promised that their light will shine brightly as the glory of the Lord rises upon them. This light, which symbolizes the divine grace, is sustained by God Himself and remains within the hearts of His chosen people throughout their lives, despite their struggles and weaknesses. Notably, the grace of God is portrayed as an imperishable and immortal force, indicative of the eternal life Christ grants to His followers.

The stability of a believer's light is not dependent on their performance or faithfulness but on God's unwavering commitment to nurture and replenish that light. When trials and adversities threaten to dim this light, God is present, actively working to revive and sustain the believer's faith. This assurance is rooted in the belief that the divine light, originating from Jesus, will outshine all other creations and endure forever, illuminating the eternal temple in the presence of God.