The ‘chair’ in the title of today’s feast is not, of course, a piece of furniture. It is the kind of ‘chair’ embedded in our word ‘chairman’ or ‘chairperson,’ or simply ‘the chair’ as a title of the person in charge of a committee or department. The feast of the Chair of St. Peter celebrates the spiritual authority of the one who is called to exercise role of Peter in the church--first by Peter himself, and nowadays by the one we are getting to know as Pope Francis.