II Corinthians 4:6, 16
II Corinthians 4:6 NKJV
For it is the God who commanded light to shine out of darkness, who has shone in our hearts to give the light of the knowledge of the glory of God in the face of Jesus Christ.
II Corinthians 4:16 NKJV
Therefore we do not lose heart. Even though our outward man is perishing, yet the inward man is being renewed day by day.