2 Corinthians is Paul's most personal and emotional letter, written in response to a crisis in his relationship with the Corinthian church. After a painful visit and criticism of his ministry, Paul defends his apostleship and authority while revealing his pastoral heart. The letter addresses the ministry of reconciliation, the nature of the New Covenant, glory that transcends suffering, and Christian generosity. Paul contrasts human weakness with God's power, showing how his afflictions magnify divine grace and validate his apostolic ministry.