Here is the series of catecheses on the Church by Pope John Paul II. This is the fourth and final part of John Paul II’s Catechesis on the Creed. This series follows John Paul II’s Catechesis on the Holy Spirit and precedes his Catechesis on Mary. It began on July 10, 1991, and concluded on August 30, 1995, and it includes 137 general audiences.
These audiences formerly were available in book form from Pauline Books & Media; however, the book is now out of print. You might be able to find it on Amazon.com or other such places where used books are available.
The Vatican website has an easy-to-miss, special section which includes all 137 of these General Audiences on the Church. These audiences are not available in English on the regular part of Vatican website (under John Paul II’s Audiences).