Alexander Larry D. Alexander 
Home and Church Bible Study Commentaries from the Apostle Paul’s First and Second Letters to the Corinthians [EPUB ebook] 

Paul’s first letter to the Church at Corinth was written to address the many problems that had cropped up, immediately following his founding of the church there, during his second missionary journey (Acts 18:1-8). The believers in Corinth had begun to question Paul’s authority as an apostle appointed by CHRIST. They were also misusing worship, suing each other in court, engaging in all sorts of immorality, and even denying that the resurrection of CHRIST ever took place.