2 Corinthians 4:7-12, 16-18

But we have this treasure in earthen vessels, that the exceeding greatness of the power may be of God, and not from ourselves; we are pressed on every side, yet not straitened; perplexed, yet not unto despair; pursued, yet not forsaken; smitten down, yet not destroyed; always bearing about in the body the dying of Jesus, that the life also of Jesus may be manifested in our body. For we who live are always delivered unto death for Jesus’ sake, that the life also of Jesus may be manifested in our mortal flesh. So then death worketh in us, but life in you.

Wherefore we faint not; but though our outward man is decaying, yet our inward man is renewed day by day. For our light affliction, which is for the moment, worketh for us more and more exceedingly an 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.