3 In order to make the indissoluble bond that exists between faith and devotion perfectly clear, the Fathers of the Council decided, in the course of reaffirming the doctrine that the Church has always held and taught and that was solemnly defined by the Council of Trent, to offer the following compendium of truths as an introduction to their treatment of the Most Holy Mystery of the Eucharist:
Source: Mysterium Fidei (Vatican.va)