2 Corinthians 4:15-18

For all things are for your sakes, that the abundant grace might through the thanksgiving of many redound to the glory of God.
For which cause we faint not; but though our outward man perish, yet the inward man is renewed day by day. For our light affliction, which is but for a moment, worketh for us a far more exceeding and eternal weight of glory; while we look not at the things which are seen, but at the things which are not seen: for the things which are seen are temporal; but the things which are not seen are eternal.