How do we know Paul is talking about one individual man in 1 Corinthians 5?
Paul uses the singular pronoun 'his' in 1 Corinthians 5, which shows that the person being addressed is a man, an individual. The surrounding discussion of the Corinthian church's problems includes this specific matter, distinguishing it from the other issues they faced.
Les explains that in going back to 1 Corinthians, chapter 5 is the passage Paul deals with most, because Paul uses the pronoun 'his.' That singular pronoun shows he is talking about a man, an individual. At Corinth, along with divisions, followings, lawsuits, and other problems, the most major problem was gross immorality in chapter 5. Verse 1 reports commonly that there was fornication among them as not named among the Gentiles.
More Questions
Which chapter of 1 Corinthians is Paul dealing with most in 2 Corinthians, and how do we know he's talking about an individual?
In 2 Corinthians, Paul is dealing primarily with 1 Corinthians 5, and because he uses the pronoun "his," he is talking about an individual man.
Did Paul consider the man in 1 Corinthians 5 lost again after delivering him to Satan?
Paul does not put the immoral man of 1 Corinthians 5 back into a lost condition — he is simply in dire straits because he is living in gross immorality.