Context: 2 Corinthians is the most personal and autobiographical of Paul's letters — and perhaps the most emotionally intense in the NT. Written about a year after 1 Corinthians, it reflects a complex and wounded relationship: there are references to a lost "severe letter," to a painful visit, and to "super-apostles" who challenged Paul's authority and authenticity.

Treasure in jars of clay (chs. 1–7): "We are afflicted in every way, but not crushed; perplexed, but not driven to despair; persecuted, but not forsaken; struck down, but not destroyed" (4:8–9). The metaphor of "treasure in jars of clay" captures the paradox of Christian ministry: divine power manifests precisely in human fragility. Chapter 5 proclaims the great declaration of reconciliation: "God was in Christ reconciling the world to himself."

The thorn in the flesh (ch. 12): Paul reveals that he received a "surpassing revelation" (a mystical experience), but also a "thorn in the flesh" — a messenger of Satan to harass him. His prayer for its removal was denied three times. The divine response became one of the most consoling verses in the Bible: "My grace is sufficient for you, for my power is made perfect in weakness" (12:9).