For Pope Paul VI, it was a busy week of ecclesiastical housekeeping. In addition to formally elevating 33 prelates to the rank of cardinal, he named a new international theological commission to study the relationship between heresy and permissible dissent within the church. The Pope also approved a new Roman missal, the book of prayers used by the priest at Mass; the new rubrics flatly forbid any fur ther unauthorized experimentation but approve such tested innovations as the use of jazz and folk music in the liturgy and end the centuries-old requirement that women cover their heads in church.
At...