“For God, who commanded the light to shine out of darkness, hath shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ.”
King James Version (KJV)
4:6 For God hath shined in our hearts - The hearts of all those whom the god of this world no longer blinds. God who is himself our light; not only the author of light, but also the fountain of it. To enlighten us with the knowledge of the glory of God - Of his glorious love, and of his glorious image. In the face of Jesus Christ - Which reflects his glory in another manner than the face of Moses did.
2Co 4:6 For God, who commanded light to shine out of darkness. Ge 1:3. Hath shone in our hearts. By bringing to the light of the gospel. The light of the knowledge of the glory of God in the face of Jesus Christ. Knowledge is light. The glory of God is revealed in his Son, who hath shown for the divine excellency, tenderness and love.