In 1st Corinthians, Paul struggles to impose his authority on his foundation. He denounces other preachers. He attacks the Corinthians for tolerating sexual immorality, and for favouring the rich members.He has to explain the resurrection. 2nd Corinthians is believed to be a composite of at least two other letters. In the first part of the letter, Paul buries the hatchet, and makes nice with the previously rebellious Corinthians. In the second part, Paul turns into Mr Hyde, and lashes into the Corinthians for listening to others, others who say that Paul is no apostle. In his letter to the Romans, Paul introduces himself, sets out some theology, and ass for help for his Spanish mission.