2 Corinthians 4:15-16 NIV

15 All this is for your benefit, so that the grace that is reaching more and more people may cause thanksgiving to overflow to the glory of God.

References for 2 Corinthians 4:15

16 Therefore we do not lose heart. Though outwardly we are wasting away, yet inwardly we are being renewed day by day.

References for 2 Corinthians 4:16