From a careful reading of his letters, we discover that Paul's major concern was unity within the church. When Paul entered Corinth it was the first time the Christian gospel was preached there. After winning some converts, Paul began a church which met in people's homes. It is believed that Paul remained in Corinth for over a year. During his time with the Corinthians, he tried to teach them everything he knew about Jesus and the gospel message. The people did not have a written gospel or New Testament to read, so they had to depend on Paul for all their information. While Paul was in Corinth, the church thrived. The time came for Paul to travel to another city and begin the process all over again, of first winning converts, then starting a church.
After Paul left, the people began experiencing some problems. The newly founded church turned to Paul for help. Paul was very sensitive to the people and the issues that threatened to divide them. Paul first tried to build the people up, complimenting them for what they were doing well. Then he gently admonished them about the quarreling that was causing division within this new church family.
When any church or Christian begins focusing on something or someone other than Jesus Christ, we are in grave danger.