The Corinthians were highly critical of Paul. They criticized his age, writing style, speech, bodily appearance, even his apostleship. Paul responded by writing them two letters admonishing them to examine their own lives instead of criticizing others. In the first, he emphasizes performing a solemn self – examination before observing communion, 1 COR. 11:27-31. In the second, he emphasizes the need to scrutinize themselves to determine their spiritual status.