1Paul, an apostle of Jesus Christ by the will of God, and Timothy our brother, unto the church of God which is at Corinth, with all the saints which are in all Achaia:Next Verse 2
The Second Epistle to the Corinthians, often written as 2 Corinthians, is a Pauline epistle and the eighth book of the New Testament of the Bible. Paul the Apostle and "Timothy our brother" wrote this epistle to "the church of God which is at Corinth, with all the saints which are in all Achaia".[2Cor.1:1]
In Paul's second letter to the Corinthians, he again refers to himself as an apostle of Christ Jesus by the will of God and reassures the people of Corinth that they will not have another painful visit, but what he has to say is not to cause pain but to reassure them of the love he has for them. It is shorter in length in comparison to the first and a little confusing if the reader is unaware of the social, religious, and economic situation of the community. Paul felt the situation in Corinth was still complicated and felt attacked.
Some challenged his authority as an apostle, and he compares the level of difficulty to other cities he has visited who had embraced it, like the Galatians. He is criticized for the way he speaks and writes and finds it just to defend himself with some of his important teachings. He states the importance of forgiving others, and God’s new agreement that comes from the Spirit of the living God (2 Cor. 3:3), and the importance of being a person of Christ and giving generously to God’s people in Jerusalem, and ends with his own experience of how God changed his life (Sandmel, 1979).