Calvinism, also called Reformed Christianity, is a major branch of Protestantism that follows the theological tradition and forms of Christian practice set down by John Calvin and various other Reformation-era theologians. It emphasizes the sovereignty of God and the authority of the Bible.
Transubstantiation is, according to the teaching of the Catholic Church, "the change of the whole substance of bread into the substance of the Body of Christ and of the whole substance of wine into the substance of the Blood of Christ". This change is brought about in the eucharistic prayer through the efficacy of the word of Christ and by the action of the Holy Spirit. However, "the outward characteristics of bread and wine, that is the 'eucharistic species', remain unaltered". In this teaching, the notions of "substance" and "transubstantiation" are not linked with any particular theory of metaphysics.
In Western Christian theology, grace is created by God who gives it as help to one because God desires one to have it, not necessarily because of anything one has done to earn it. It is understood by Western Christians to be a spontaneous gift from God to people – "generous, free and totally unexpected and undeserved" – that takes the form of divine favor, love, clemency, and a share in the divine life of God. In the Eastern Orthodox Church, grace is the uncreated Energies of God. Among Eastern Christians generally, grace is considered to be the partaking of the Divine Nature described in 2 Peter 1:4 and grace is the working of God himself, not a created substance of any kind that can be treated like a commodity.
The Catechism of the Catholic Church is a reference work that summarizes the Catholic Church's doctrine. It was promulgated by Pope John Paul II in 1992 as a reference for the development of local catechisms, directed primarily to those responsible for catechesis and offered as "useful reading for all other Christian faithful". It has been translated into and published in more than twenty languages worldwide.
A catechism is a summary or exposition of doctrine and serves as a learning introduction to the Sacraments traditionally used in catechesis, or Christian religious teaching of children and adult converts. Catechisms are doctrinal manuals – often in the form of questions followed by answers to be memorised – a format that has been used in non-religious or secular contexts as well. According to Norman DeWitt, the early Christians appropriated this practice from the Epicureans, a school whose founder Epicurus had instructed to keep summaries of the teachings for easy learning. The term catechumen refers to the designated recipient of the catechetical work or instruction. In the Catholic Church, catechumens are those who are preparing to receive the Sacrament of Baptism. Traditionally, they would be placed separately during Holy Mass from those who had been baptized, and would be dismissed from the liturgical assembly before the Profession of Faith and General Intercessions.
The five solae of the Protestant Reformation are a foundational set of Christian theological principles held by theologians and clergy to be central to the doctrines of justification and salvation as taught by the Calvinism and Lutheranism branches of Protestantism, as well as in some sects of Pentecostalism. Each sola represents a key belief in these Protestant traditions that is distinct from the theological doctrine of the Catholic Church, although they were not assembled as a theological unit until the 20th century. The Reformers are known to have only clearly stated two of the five solae. Even today there are differences as to what constitutes the solae, how many there are, and how to interpret them to reflect the Reformers' beliefs.
The Westminster Shorter Catechism is a catechism written in 1646 and 1647 by the Westminster Assembly, a synod of English and Scottish theologians and laymen intended to bring the Church of England into greater conformity with the Church of Scotland. The assembly also produced the Westminster Confession of Faith and the Westminster Larger Catechism. A version without Scripture citations was completed on 25 November 1647 and presented to the Long Parliament, and Scripture citations were added on 14 April 1649.
A mortal sin, in Christian theology, is a gravely sinful act which can lead to damnation if a person does not repent of the sin before death. It is alternatively called deadly, grave, and serious; the concept of mortal sin is found in both Catholicism and Lutheranism. A sin is considered to be "mortal" when its quality is such that it leads to a separation of that person from God's saving grace. Three conditions must together be met for a sin to be mortal: "Mortal sin is sin whose object is grave matter and which is also committed with full knowledge and deliberate consent." The sin against the Holy Spirit and the sins that cry to Heaven for vengeance are considered especially serious. This type of sin is distinguished from a venial sin in that the latter simply leads to a weakening of a person's relationship with God. Despite its gravity, a person can repent of having committed a mortal sin. Such repentance is the primary requisite for forgiveness and absolution.
The communion of saints, when referred to persons, is the spiritual union of the members of the Christian Church, living and the dead, but excluding the damned. They are all part of a single "mystical body", with Christ as the head, in which each member contributes to the good of all and shares in the welfare of all.
The Roman Catechism or Catechism of the Council of Trent is a compendium of Catholic doctrine commissioned during the Counter-Reformation by the Council of Trent, to expound doctrine and to improve the theological understanding of the clergy. It was published in 1566.
Metousiosis is a Greek term (μετουσίωσις) that means a change of ousia.
Eucharist is the name that Catholics give to the sacrament by which, according to their belief, the body and blood of Christ are present in the bread and wine that are consecrated during the Catholic eucharistic liturgy, generally known as the Mass. The definition of the Eucharist in the 1983 Code of Canon Law as the sacrament where Christ himself "is contained, offered, and received" points to the three aspects of the Eucharist according to Catholic theology: the real presence of Christ in the Eucharist, Holy Communion, and the holy sacrifice of the Mass.
Mystical theology is the branch of theology in the Christian tradition that explains mystical practices and states, as induced by contemplative practices such as contemplative prayer, called theoria from the Greek for contemplation.
Calvinism originated with the Reformation in Switzerland when Huldrych Zwingli began preaching what would become the first form of the Reformed doctrine in Zürich in 1519.
The Catechism of Saint Pius X is the common name in English of the 1908 book Catechismo della Dottrina Cristiana, issued at the order of Pope Pius X with questions and answers regarding the essentials of Catholic faith. A shortened version was published in 1930 with the addition of illustration.
Catholic theology is the understanding of Catholic doctrine or teachings, and results from the studies of theologians. It is based on canonical scripture, and sacred tradition, as interpreted authoritatively by the magisterium of the Catholic Church. This article serves as an introduction to various topics in Catholic theology, with links to where fuller coverage is found.
Papal infallibility is a dogma of the Catholic Church which states that, in virtue of the promise of Jesus to Peter, the Pope when he speaks ex cathedra is preserved from the possibility of error on doctrine "initially given to the apostolic Church and handed down in Scripture and tradition". It does not mean that the pope cannot sin or otherwise err in most situations.
The Reformed Presbyterian Church of Ireland is a Presbyterian church in Ireland. The church currently has forty-three congregations, of which thirty-five are located in Northern Ireland; the remaining eight are located in the Republic of Ireland. As of 2011, its total communicant membership is 1,952. The distribution of Reformed Presbyterians accords with the distribution of the Ulster Scots, with most congregations based in counties Antrim, Londonderry and Down. Several new congregations have, however, been formed recently in the Belfast area, along with fellowships in Galway and Dublin.
Keach's Catechism is a Reformed Baptist catechism consisting of a set of basic questions and answers from scripture teaching readers the basics of the Reformed Baptist faith.
Samuel Petto was an English Calvinist, a Cambridge graduate, and an Independent Puritan clergyman who primarily ministered in Sudbury, Suffolk. He was a prolific theologian who made a notable contribution to the development of British covenant theology by describing the link between the covenant of works and the covenant of grace and also demonstrating the relationship between justification and covenant theology. Additionally, he wrote two catechisms and a book advocating lay preaching. He also had close ties with a radical political movement.
