What does the Bible say about light and darkness in relation to Jesus?

In the Bible, darkness often symbolizes spiritual blindness, ignorance, and sin. Conversely, Jesus is identified as the great light that dispels such darkness. In Matthew 4:16, it is stated, 'The people which sat in darkness saw great light; and to them which sat in the region and shadow of death, light is sprung up.' This portrays the transformative power of Christ's coming, illustrating that He is the source of true knowledge and spiritual illumination, guiding believers out of darkness into His marvelous light.