When Paul arrived, Corinth was prospering as the fourth largest city in the roman empire, a commercial bridge between East and West. It had two harbours one on the Aegean and the other on the Adriatic Sea. Situated at such an important cross-roads of the ancient world, it became notorious for its sexual vice and immorality. the description of Gentile sin in Romans 1:18-32 fits Corinth exactly. Paul preached the gospel there in the early 50?s, stayed for eighteen months, and established a church there. 2 Corinthians Pauls most autobiographical letter, in which he opens his heart more than in any other-shows the privileges and pressures of pastoral work. It also contains unique passages about perseverance under trials, the nature of Christian service, evangelism and giving.