Yes, Paul was the 12. He was also the first of the 7 messengers sent to us, the rest are:
1. Paul
2. Irenous
3. Martin
4. Columbia
5. Martin luther
6. John Wesley
7. William Branham
Jesus said His church are the people and in it He would make Him know to the people who He revealed Himself too. He also gave us a five fold ministry to help us in our lives.