The Spirit Gives Gifts (12:11)
"All these are the work of one and the same Spirit, and he gives them to each one, just as he determines." (12:11)
At the close of this chapter, Paul tells us to "eagerly desire the greater gifts" (12:31), but we're not in some kind of Gift Accumulation Race to show who is most spiritual. You can't just receive spiritual gifts by pestering God for them. Verse 11 explains five things about spiritual gifts.
Many Parts, One Body (12:12)
Now Paul introduces the analogy of a body that explains unity through diversity, how each very different person and gift goes into making a healthy, capable, well-rounded body.
"The body is a unit, though it is made up of many parts; and though all its parts are many, they form one body. So it is with Christ." (12:12)
Just as a human body has many parts and organs, so does Paul's analogy to Christ's body, the church.