2 Corinthians 4:16-18 NIV

[16] Therefore we do not lose heart. Though outwardly we are wasting away, yet inwardly we are being renewed day by day. [17] For our light and momentary troubles are achieving for us an eternal glory that far outweighs them all. [18] So we fix our eyes not on what is seen, but on what is unseen, since what is seen is temporary, but what is unseen is eternal.