What does the Bible say about God as light?

Scripture clearly states that God is light, capturing this profound truth in 1 John 1:5, which proclaims, 'This is the message we have heard from Him and declare to you: God is light; in Him, there is no darkness at all.' This verse establishes the fundamental nature of God, emphasizing His holiness and purity. Additionally, David expresses in Psalm 36:9, 'For with You is the fountain of life; in Your light we see light.' This implies that understanding God’s nature as light sheds illumination on our lives and reveals the truth, guiding us away from darkness and into His marvelous grace and truth.