What does the Bible say about God giving light to His people?

The scripture in Isaiah 9:2 declares that the people who walked in darkness have seen a great light. This prophetic statement finds its fulfillment in the coming of Jesus Christ, who is described as the light of the world. Not only does this refer to a physical illumination, as seen in His ministry, but it also signifies spiritual enlightenment. In 2 Corinthians 4:6, it is shown that God shines in our hearts to give the light of the knowledge of His glory in the face of Jesus Christ. For those who are the elect, this light is a transformative grace that dispels the darkness of ignorance and sin, revealing their lost state and the way to salvation through Christ.