Quotes By Catholic Insight - November 18, 2019 FacebookTwitterPinterestWhatsAppPrint Just as in one man there is one soul and one body, yet many members; even so the Catholic Church is one body, having many members. The soul that quickens this body is the Holy Spirit; and therefore in the Creed after confessing our belief in the Holy Spirit, we are bid to believe in the Holy Catholic Church. (Saint Thomas Aquinas)