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Solidarity
The Christian virtue of social charity and friendship
Blessed Trinity
The central mystery of the Christian faith. It teaches that there are three Persons in one God: Father, Son, and Holy Spirit.
Ecumenism
The movement, inspired and led by the Holy Spirit, that seeks the union of all Christian religions and eventually the unity of all peoples throughout the world within the Catholic Church.
Agape
Love that does not describe a quality and more than romantic love.
Apostasy
The denial of Christ and the repudiation of the Christian Faith by a baptized Christian.
Dogmas
Central truths of the Catholic faith, defined by the Magisterium, that Catholics are obliged to believe.
Heresy
An obstinate denial after Baptism to believe a truth that must be believed with divine and Catholic faith, or an obstinate doubt about such truth.
Ecumenical Council
A gathering of the Church's bishops from around the world convened by the Pope or approved by him to address pressing issues in the Church.
Schism
A break in Christian unity that takes place when a group of Christians separates itself from the Church
Idolatry
Worshipping something or someone other than the true God
Crusaders
The name for participants in one of the nine armed expeditions by Christians beginning in 1095 and ending in 1291 that were intended to drive the Muslims out of the Holy Land and, in the process, reunited Christians of the East and West.
Protestant Reformation
An effort to reform the Catholic Church in the sixteenth century which led to the separation of large numbers of Christians from communion with Rome and with each other.
Orthodox
adhering to the traditional and established, especially in religion
Deposit of Faith
The heritage of faith contained in Sacred Scripture and Sacred Tradition
Predestination
A false doctrine taught by John Calvin that God determines people for Salvation or damnation before they are born and that no human effort can merit Salvation or entrance into the elect.
motu propio
A Latin term that means "of his own accord." It signifies words in papal documents that were decided by the pope personally.
Apologist
"Defender of the faith." A Catholic who works hard to dispel the false rumors about Catholicism and Christianity and who makes the faith appear both more reasonable and acceptable to non-Christians.
Evangelisation
To bring the Good News of Jesus Christ to others
Episcopal Synod
A representative body of bishops assembled periodically by the pope to advise him on important Church concerns. It is not a legislative body.
Episcopal Collegiality
All the bishops of the Church with the pope as their head. This college together, but never without the pope, has supreme and full authority over the universal Church.
Pontiff
A term that literally means "bridge-builder." It refers to the Bishop of Rome, or pope.