After Paul's greeting that reminds them of their position in Christ, he begins to deal with some of the problems in the Corinthian church.  First on the list, is the issue of division! Paul urges them on the basis of their familial bonds in Christ to be of the same mind and speech.  Unity does not demand uniformity, but quarrels and factions hinder the cause of Christ.  Paul reminds them that Jesus Christ is the Lord of the church and that their priority should be the proclamation of the Gospel!