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Lesson 7

The Church is One

The Church is one because God Himself is one.

Catechism Connections

Lesson Topics
Catholic Apologetics Church History Ecumenism The Church
Essential Lessons

N/A

Lesson Vocabulary

  • Latin (or Roman) Church
    :
    (n.): The term describing the large majority of Catholics whose liturgical worship is based on the Latin Rite and who trace their history to Rome. Rome was one of the five patriarchates along with Constantinople, Alexandria, Antioch, and Jerusalem.
  • Eastern Catholic Churches
    :
    (n.): The term describing those Catholics who worship according to liturgical traditions developed in the East and who trace their origin to either Constantinople, Alexandria, Antioch, or Jerusalem. These 23 churches with approximately 16 million members are in full communion with the Catholic Church and recognize the primacy of the pope.
  • Heresy
    :
    (n.): The obstinate denial after Baptism of a truth which must be believed with divine and Catholic faith.
  • Gnosticism
    :
    (n.): The name given to a heresy of the early Church that taught, among other things, that Jesus was not fully human, the material world was evil, and salvation was achieved through secret knowledge, or gnosis.
  • Arianism
    :
    (n.): An influential heresy of the early Church that taught that Jesus, the Son of God, was created by God the Father, and therefore not truly equal to Him or of the same substance.
  • Nestorianism
    :
    (n.): The name given to a heresy of the early Church that divided Jesus into two persons, an eternal divine Person and a created human person who were closely connected but not one and the same.
  • Monophysitism
    :
    (n.): The name given to a heresy of the early Church which asserted that Christ had only one nature: divine.
  • Apollinarianism
    :
    (n.): The name given to a heresy of the early Church which asserted that Christ had a human body and a human- sensitive soul but not a human rational mind.
  • Pelagianism
    :
    (n.): The name given to a heresy of the early Church which denied the effects of Original Sin on human nature and asserted that moral perfection was possible to achieve without divine help.
  • Donatism
    :
    (n.): The name given to a heresy of the early Church which asserted that the validity and effectiveness of a clergyman’s prayers and ministry depended on his personal holiness.
  • Protestant Reformation
    :
    (n.): A 16th century revolt began by Martin Luther that divided and eventually splintered Christianity. Many Christian churches, which are known as Protestant churches or denominations, formed as a result of this split. Though Jesus desires that His Church be one, all baptized Christians are brothers and sisters in Christ.
  • Sola Scriptura
    :
    (n.): The belief that the Bible is the only source of divine revelation held by most non-Catholic Christian churches. Latin for “by Scripture alone.”
  • Sola Fide
    :
    (n.): The belief that we are saved through faith alone, and that our willing cooperation with God’s grace plays no role in our salvation. This belief is held by most non-Catholic Christian churches. Latin for “faith alone.”
  • Sola Gratia
    :
    (n.): The belief that we are saved through God’s grace, and that our own efforts play no role in our salvation. Catholics do not believe in sola gratia, Latin for “grace alone.”
  • Apostasy
    :
    (n.): Renunciation of a religion. Among sins against the First Commandment, apostasy is the sin of total repudiation of the Christian Faith.
  • Schism
    :
    (n.): A division caused by differences in belief. Among sins against the First Commandment, schism is the refusal of submission to the pope or of communion with the members of the Church subject to him.
  • The Great Schism
    :
    (n.): The separation of Eastern Christians from the Catholic Church in 1054. The Eastern churches became known as the Orthodox Church.
  • Excommunication
    :
    (n.): The exclusion of someone from reception of the Sacraments and participation in the Church in order that the person can correct their ways and return. Excommunication is the most severe ecclesiastical penalty. Except for when in danger of death, absolution may only be granted by the pope to a person who has been excommunicated from the Church. From Latin ex, or out of, and communio, communion.
  • Ecumenism
    :
    (n.): The work of restoring unity among all Christians by bringing them back into the Catholic Church, which alone offers the fullness of the means of salvation.

    • Plan

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