A.T. Robertson Commentary 2 Corinthians 6:10

"as sorrowful, yet always rejoicing; as poor, yet making many rich; as having nothing, and [yet] possessing all things." — 2 Corinthians 6:10 (ASV)

Always rejoicing (αε χαιροντες). Even in sorrow (11:9; 1 Thessalonians 5:16; Romans 5:3–5; Romans 9:2; Php 2:18,27; Romans 3:1; 4:4,15).

Yet making many rich (πολλους δε πλουτιζοντες). Old word from πλουτος (wealth), to enrich. Spiritual riches Paul has in mind as in 1 Corinthians 1:5 (cf. Matthew 5:37).

As having nothing and yet possessing all things (ως μηδεν εχοντες κα παντα κατεχοντες). Contrast between μηδεν (nothing) and παντα (all things, cf. 1 Corinthians 3:22) and εχω (to have) and κατεχω (to hold down, to hold fast). Play on words (simple and compound) as in 3:2; 4:8. Climax of Paul's panegyric on the Christian ministry. He now resumes the thread of the story broken off in 2:14.