Weigel’s more than 20 books range from studies of St. Augustine’s theory of justice and peace to a liturgical and devotional guide to the Roman station churches of Lent, but his most important work is his two-volume biography of John Paul, published in 1999, Witness to Hope: The Biography of Pope John Paul II, and in 2010, The End and the Beginning: Pope John Paul II — the Victory of Freedom, the Last Years, the Legacy.

Weigel interpreted the epic 26-year papacy of John Paul for millions of readers by writing about the most consequential religious figure of our time “from the inside.” When previous biographies failed to capture the essence of the person and the pontificate, John Paul would observe that it was because biographers would try to understand him “from the outside.”

With remarkable access to John Paul, his friends and colleagues, Weigel produced, with the complete freedom to write whatever he wished without any requirement for papal approval, an authoritative book that became for many spiritual reading. (On a visit to the venerable Benedictine monastery at Solesmes, I heard it read in the refectory to the monks in French.)