IN THE POST-VATICAN II UNDERSTANDING
The Synod of Bishops is a permanent institution established by Pope Paul VI, 15 September 1965, in response to the desire of the Fathers of the Second Vatican Council to keep alive the positive spirit engendered by the conciliar experience.
Literally speaking, the word synod, derived from two Greek words syn meaning "together" and hodos meaning "road" or "way", means a "coming together". A synod is a religious meeting or assembly at which bishops, gathered around with the Holy Father, have opportunity to interact with each other and to share information and experiences, in the common pursuit of pastoral solutions which have a universal validity and application. The Synod, generally speaking, can be defined as an assembly of bishops representing the Catholic episcopate, having the task of helping the Pope in the governing of the universal Church by rendering their counsel. Pope John Paul II has referred to the Synod as "a particular fruitful expression and instrument of the collegiality of bishops".
Even before the Second Vatican Council the idea was growing for a structure which might provide the bishops with the means to assist the Pope, in some manner to be determined, in his governing of the universal Church.
His Eminence, Silvio Cardinal Oddi, then an Archbishop and Apostolic Pro-Nuncio in the United Arab Republic (Egypt), on 5 November 1959, mad a proposal to establish a central governing body of the Church or, to use his words, "a consultative body". He stated: "From many parts of the world there come complaints that the Church does not have a permanent consultative body, a part from the Roman congregations. Therefore, a kind of 'Council in miniature' should be established and include persons from the Church world-wide who would meet periodically, even once a year, to discuss major concerns and to suggest possible new paths in the workings of the Church. This body would extend over the whole Church as the episcopal conferences bring together all or part of the hierarchy of a country or countries. Other bodies, like CELAM (The Episcopal Conferences for Latin America), for example, extends its activity for the benefit of the whole continent."
On 22 December 1959, His Eminence, Cardinal Alfrink, Archbishop of Utrecht, wrote: "In clear terms the Council proclaims that the government of the universal Church is by right exercised by the college of bishops with the Pope as its head. From here it follows that, in one sense, the care of the universal Church is the responsibility of every bishop taking singularly, and also, in another sense, that all bishops participate in the governing of the Church world-wide. This can be done not only in calling an ecumenical council, but also in the creation of new institutions. Perhaps some permanent council of specialised bishops, chose from the Church, could be given the charge of a legislative function in union with the Supreme Pontiff and the Cardinals of the Roman Curia. The Roman Congregations would then maintain only a consultative and executive power."
However, it was Pope Paul VI who gave force to these ideas, while he was still Archbishop of Milan. In a talk commemorating the death of Pope John XXIII, he made reference to an "ongoing collaboration of the episcopate that is not yet in effect, which would remain personal and unitive, but given the responsibility of governing the whole Church". After his election as Pope he kept returning to the concept of collaboration within the episcopal body - the bishops in union with the successor of Saint Peter - in a talk he gave to the Roman Curia (21 September, 1963), at the opening of the second session of the Second Vatican Council (29 September, 1963) and again at its closing (4 December, 1963).
Finally at the conclusion of a discourse beginning the last session of the Council (14 September, 1965), Pope Paul VI himself made public his intention to establish the Synod of Bishops in the following words: "The advanced information that We Ourselves are happy to share with you is that We intend to give you some institution, called for by this Council, a "Synod of Bishops", which will be made up of bishops nominated for the most part by the episcopal conferences with Our approval and called by the Pope according to the needs of the Church, for his consultation and collaboration, when for the well-being of the Church it might seem to him opportune. It goes without saying that this collaboration of the episcopate ought to bring the greatest joy to the Holy See and to the whole Church. In a particular way it will serve a useful purpose in the daily work of the Roman Curia, to which We owe so much recognition for its most valuable help, and for which, as bishops in their diocese, We also have permanent need in Our apostolic concerns. News and norms will be made known to this assembly as soon as possible. We did not wish to deprive Ourselves of the honour and pleasure of making you aware of this brief communication so as to personally bear witness once more to Our trust, esteem and fraternity. We place this beautiful and promising innovation under the protection of Mary, the Mother of God."
On the next day, 15 September 1965, at the beginning of the 128th General Assembly (of the second Vatican Council), the then Bishop Pericle Felici, General Secretary of the Council, promulgated the Motu proprio - Apostolica Sollicitudo with which the Synod of Bishops was officially instituted.