1 Corinthians 3:22

Whether Paul, or Apollos, or Cephas, or the world, or life, or death, or things present, or things to come; all are your's (KJV)

Then: Henry specifies and explains the spiritual riches the Corinthians possessed. It didn't matter whether they followed Paul or Apollos or Cephas, through them they had access to Christ's teachings and therefore they owned all the knowledge and teachings that any of the leaders could give them.

Now: Beardslee (p. 31) compares Paul's reasoning that the Corinthians should abandon worldy wisdom to Christ's teaching that those who lose their lives for him will actually gain it. Paul lists what they gain. By now, readers see Paul's teaching style. State the principle first, follow it with supporting quotations or explanatory details, and connect it to the lives of the Corinthians.

Extra source: Commentary on the Whole Bible Acts to Revelation Vol VI by Matthew Henry online at http://www.ccel.org/ccel/henry/mhc6.iCor.iv.html
First Corinthians: a commentary for today by William A. Beardslee (St. Louis MO: Chalice Press, c1994) online at http://books.google.com/books?id=cKpy9maLuiQC&dq=Corinthians+commentary&printsec=frontcover&source=bl&ots=ZdJnhnUolH&sig=xQvIGm41suvwCLZkF_tsYdCfnuc&hl=en&ei=b6koS5rODtLDlAfBgo2hDQ&sa=X&oi=book_result&ct=result&resnum=9&ved=0CCEQ6AEwCDhk#v=onepage&q=&f=false