16 Therefore we do not lose heart, but though our outer man is decaying, yet our inner man is being renewed day by day. 17 For momentary, light affliction is producing for us an eternal weight of glory far beyond all comparison, 18 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.

2 Corinthians 4:16-18 (NASB)