The Book of Corinthians, specifically the First Epistle to the Corinthians, was written by the Apostle Paul, with a co-author named Sosthenes, who likely served as Paul’s scribe or companion. Paul wrote this letter to the Christian church in Corinth around A.D. 55-56 during his stay in Ephesus. It addresses various problems and issues faced by the Corinthian Christians, such as divisions in the church, moral concerns, and questions about Christian doctrine and practice.
Paul identifies himself explicitly in the letter's opening and speaks as Christ’s apostle, establishing his authority to address these matters. Sosthenes’ exact role is uncertain, but he is mentioned as a co-author in the salutation.
Thus, authorship is traditionally and academically attributed to Paul, with Sosthenes assisting, and the letter is one among several Paul wrote to the Corinthian church.
