The Ecumenical Councils 
and their Chief Doctrines
The twenty one General Councils are presented here in their chronological order. Several General Councils were held in the same places at different times and so are named first, second, etc., after the particular place where they were held. Of necessity only a very general statement can here be made of the various actions of the Councils and we limit this to the more important doctrinal questions.

 

    1.  The First Council of Nicaea (A.D. 325)
    This Council, the first Ecumenical Council of the Catholic Church, was
    held in order to bring out the true teaching of the Church as opposed
    by the heresy of Arius. It formally presented the teaching of the
    Church declaring the divinity of God the Son to be one substance and
    one nature with that of God the Father. There were twenty canons drawn
    up, in which the time of celebrating Easter was clarified and a
    denunciation of the Meletian heresy made, also various matters of
    discipline or law were dealt with and several decisions advanced. From
    this Council we have the Nicene Creed.

    2.  The First Council of Constantinople (A.D. 381)
    Again the true faith was maintained against the Arians. Answer was
    also given against the Apollinarian and Macedonian heresies. In
    answering the latter which denied the Godhead of the Holy Spirit, the
    dogma of the Church was again stated and the words inserted into the
    Nicene Creed declaring the truth that the Holy Spirit proceeded from
    both the Father and the Son.

    3.  The Council of Ephesus (A.D. 431)
    The third General Council of the Church defined the Catholic dogma
    that the Blessed Virgin is the Mother of God (theotokos) and presented the
    teaching of the truth of one divine person in Christ. The Council was
    convened against the heresy of Nestorius.

    4.  The Council of Chalcedon (A.D. 451)
    Held twenty years after the third General Council, this was to answer
    the Eutychian or Monophysite heresy and affirm the doctrine of two
    natures in Christ. This followed as a result of the growing
    controversy among the early theologians who were being led into error
    by a confused idea of the one divine person being both God and man or
    that there are two natures, human and divine, in the one person of the
    Word.

    5.  The Second Council of Constantinople  (A.D. 553)
    This Council is sometimes referred to as the Council of the Three
    Chapters because its chief work was to condemn the writings and
    teaching of Theodore of Mopsuestia, the erroneous portions in the
    writings of Theodoret, and the letters of Ibas. It reaffirmed the
    dogmas stated by the third and forth General Councils.

    6.  The Third Council of Constantinople  (A.D. 680)
    This Council gave the definition of two wills in Christ as the true
    teaching against the Monothelite heresy which claimed only one will.

    7.  The Second Council of Nicaea  (A.D. 757)
    Here was defined the veneration due to holy images, that we give honor
    only to those they represent and not to the image itself as such; it
    presented the answer to the image breakers or iconoclasts. It also
    gave twenty-two canons regarding the clergy.

    8.  The Forth Council of Constantinople  (A.D. 869)
    This was a disciplinary Council to heal the threat of schism which was
    separating the East and Rome. This was done by deposing the usurper,
    Photius, and restoring the patriarch, Ignatius. The Greeks finally
    refused acknowledgment of the Council.

    9.  The First Council of the Lateran   (A.D. 1123)
    The Lateran is the Cathedral Basilica of Rome. This was the first
    General Council held in the West. It was convened to confirm the peace
    between the Church and State and to give final settlement to the
    problem of Investiture between Emperor Henry V and the Holy See. It
    was agreed that the Church has all rights to choose and consecrate
    prelates and invest them, and Church goods were restored to the
    Church.

   10. The Second Council of the Lateran   (A.D. 1139)
    This Council took disciplinary action and excommunicated Roger of
    Sicily who championed the anti-pope. Anacletus II, and imposed silence
    on Arnold of Brescia. Canons against simony, incontinence, breaking
    the "Truce of God," dueling or group feuding were advanced, and
    regulations concerning clerical dress were given.

   11. The Third Council of the Lateran   (A.D. 1179)
    After forty years again the General Council took actions against
    simony and abuses of the clergy. Also defense of the true teaching was
    made in answer to the Albigenses and Waldenses.

  12. The Fourth Council of the Lateran   (A.D. 1215)
    Besides disciplinary action the seventy decrees of this Council
    answered prevailing heresies, gave pronouncements in favor of the
    Crusades, prescribed the duty of annual confession and Easter
    Communion, offered additional definitions on the absolute unity of
    God, and presented definition of the doctrine of the Church regarding
    sacraments, and in particular that the bread and wine, by
    transubstantiation, become the Body and Blood of Christ.

   13. The First Council of Lyons   (A.D. 1245)
    This Council was called to bring disciplinary action against Emperor
    Frederick II and at the same time sentence of the solemn renewal of
    excommunication was passed on the emperor.

   14.  The Second Council of Lyons   (A.D. 1274)
    Effort was made at this Council under Pope Gregory X to bring about
    union between the East and West. It also defined that the Holy Spirit
    proceeds eternally from the Father and the Son. The discipline
    governing the election of the pope was formulated.

   15.  The Council of Vienne   (A.D. 1311 and 1312)
    The purpose of this Council was to settle the affair of the Templars,
    to advance the rescue of the Holy Land, and to reform abuses in the
    Church. The doctrinal decrees of the Council were: condemnation that
    the soul is not "in itself the essentially the form of the human
    body",; that sanctifying grace is infused into the soul at baptism;
    and denial that a perfect man is not subject to ecclesiastical and
    civil law.

   16.  The Council of Constance  (A.D. 1414 - 1418)
    This Council can be regarded as ecumenical only in so far as it was in
    union with the pope. The heretical teaching of John Huss and Wyclif
    were answered. It was here that communion to the laity under one
    species was prescribed as a cure to the make it understood that the
    entirety of Jesus Christ is present under both or either species.   In
    transubstantiation all of the bread is changed into the body, blood,
    soul and Divinity of Christ and all of the wine is changed into the
    body, blood, soul and Divinity of Christ and reception of either
    species was reception of the total; body, blood, soul and Divinity of
    Jesus Christ.

   17. The Council of Ferrara-Florence  (A.D. 1438 - 1439)
    This was convened to unite the Greeks and other oriental sects with
    the Latin Rite. It was defined that "the Holy Apostolic See and Roman
    Pontiff hold the primacy over all the world; that the Roman Pontiff is
    the successor of Peter, prince of the Apostles; that he is the true
    vicar of Christ, the head of the whole Church, the Father and teacher
    of all Christians."

   18.  The Fifth Council of the Lateran  (A.D. 1512 - 1517)
    It defined the Pope's authority over all Councils and condemned errors
    regarding the human soul, namely, that the soul with its intellectual
    power is mortal.

   19.  The Council of Trent
                 (opened under Pope Paul III in 1545, continued under Pope Julius III, and concluded under
                   Pope Pius IV   (A. D. 1563)
    The doctrine of original sin was defined; the decree on Justification
    was declared against the Lutheran errors that faith alone justifies
    and that the merits of Christ; the doctrine of the sacraments of
    Penance and Extreme Unction was defined; decrees relating to the
    censorship of books were adopted; the doctrine of Christian marriage
    was defined and decrees on Purgatory and indulgences adopted. Besides
    many refutations against the so called reformers were given and
    measures of true reform advanced.

    20.  The First Vatican Council
                 (opened under Pope Pius IX in 1869 and adjourned on October 20, 1870)
    This General Council was never closed officially, but was suspended.
    Technically, it continued until it was closed by Pope John XXIII. Of
    this council the most important decree was that of the primacy of the
    pope and of papal infallibility.

    21.  The Second Vatican Council
                 (opened under Pope John XXIII in 1962, it continued under Pope Paul XI until the end in 1965)
    Several important constitutions and decrees were promulgated, the most
    far reaching being the Constitution on Sacred Liturgy.

   Documents of Vatican II