17)For momentary, a light affliction is producing for us an eternal weight of glory far beyond all comparison, 18) while we a 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. (See notes below)

Arw27

bible.com/bible/100/psa.30.5.NASB1995

MacArthur Study Bible

2nd Cor 4:17

momentary, light affliction. The Gr. word for “light” means “a weightless trifle” and “affliction” refers to intense pressure. From a human perspective, Paul’s own testimony lists a seemingly unbearable litany of sufferings and persecutions he endured throughout his life ( 11:23–33 ), yet he viewed them as weightless and lasting for only a brief moment. eternal weight of glory. The Gr. word for “weight” refers to a heavy mass. For Paul, the future glory he would experience with the Lord far outweighed any suffering he experienced in this world (cf. Ro 8:17 , 18 ; 1Pe 1:6 , 7 ). Paul understood that the greater the suffering, the greater would be his eternal glory (cf. 1Pe 4:13 ).

4:18

things which are seen … not seen. Endurance is based on a person’s ability to look beyond the physical to the spiritual; beyond the present to the future, and beyond the visible to the invisible.