DoxologyA doxology (Ancient Greek: δοξολογία doxologia, from δόξα, doxa 'glory' and -λογία, -logia 'saying') is a short hymn of praises to God in various forms of Christian worship, often added to the end of canticles, psalms, and hymns. The tradition derives from a similar practice in the Jewish synagogue, where some version of the Kaddish serves to terminate each section of the service. Among Christian traditions a doxology is typically an expression of praise sung to the Holy Trinity: the Father, the Son, and the Holy Spirit.
Apostolic FathersThe Apostolic Fathers, also known as the Ante-Nicene Fathers, were core Christian theologians among the Church Fathers who lived in the 1st and 2nd centuries AD who are believed to have personally known some of the Twelve Apostles or to have been significantly influenced by them. Their writings, though widely circulated in early Christianity, were not included in the canon of the New Testament. Many of the writings derive from the same time period and geographical location as other works of early Christian literature which came to be part of the New Testament.
Apostolic ConstitutionsThe Apostolic Constitutions or Constitutions of the Holy Apostles (Latin: Constitutiones Apostolorum) is a Christian collection divided into eight books which is classified among the Church Orders, a genre of early Christian literature, that offered authoritative pseudo-apostolic prescriptions on moral conduct, liturgy and Church organization. The work can be dated from 375 to 380 AD. The provenance is usually regarded as Syria, probably Antioch.
Lord's PrayerThe Lord's Prayer, often known by its incipit Our Father (Pater Noster), is a central Christian prayer which Jesus taught as the way to pray. Two versions of this prayer are recorded in the gospels: a longer form within the Sermon on the Mount in the Gospel of Matthew, and a shorter form in the Gospel of Luke when "one of his disciples said to him, 'Lord, teach us to pray, as John taught his disciples.
Adolf von HarnackCarl Gustav Adolf von Harnack (born Harnack; 7 May 1851 – 10 June 1930) was a Baltic German Lutheran theologian and prominent Church historian. He produced many religious publications from 1873 to 1912 (in which he is sometimes credited as Adolf Harnack). He was ennobled (with the addition of von to his name) in 1914. Harnack traced the influence of Hellenistic philosophy on early Christian writings and called on Christians to question the authenticity of doctrines that arose in the early Christian church.
Church FathersThe Church Fathers, Early Church Fathers, Christian Fathers, or Fathers of the Church were ancient and influential Christian theologians and writers who established the intellectual and doctrinal foundations of Christianity. The historical period in which they worked became known as the Patristic Era and spans approximately from the late 1st to mid-8th centuries, flourishing in particular during the 4th and 5th centuries, when Christianity was in the process of establishing itself as the state church of the Roman Empire.
SabellianismIn Christianity, Sabellianism is the Eastern Church equivalent to Patripassianism in the Western Church, which are both forms of theological modalism. Condemned as heresy, Modalism is the belief that the Father, Son and Holy Spirit are three different modes of God, as opposed to a Trinitarian view of three distinct persons within the Godhead. However, Von Mosheim, German Lutheran theologian who founded the pragmatic school of church historians, argues that Sabellius "believed the distinction of Father, Son, and Holy Spirit, described in the Scriptures, to be a real distinction, and not a mere appellative or nominal one.
Easter letterThe Festal Letters or Easter Letters are a series of annual letters by which the Bishops of Alexandria, in conformity with a decision of the First Council of Nicaea, announced the date on which Easter was to be celebrated. The council chose Alexandria because of its famous school of astronomy, and the date of Easter depends on the spring equinox and the phases of the moon. The most famous of those letters are those authored by Athanasius, a collection of which was rediscovered in a Syriac translation in 1842.
Epistle of BarnabasThe Epistle of Barnabas (Βαρνάβα Ἐπιστολή) is a Greek epistle written between AD 70 and 132. The complete text is preserved in the 4th-century Codex Sinaiticus, where it appears immediately after the New Testament and before the Shepherd of Hermas. For several centuries it was one of the "antilegomena" ("disputed") writings that some Christians looked on as sacred scripture, while others excluded them. Eusebius of Caesarea classified it as such.
Biblical SabbathThe Sabbath is a weekly day of rest or time of worship given in the Bible as the seventh day. It is observed differently in Judaism and Christianity and informs a similar occasion in several other faiths. Observation and remembrance of Sabbath is one of the Ten Commandments ("Remember the sabbath day, to keep it holy") considered to be the fourth in Judaism, Eastern Orthodoxy, and most Protestant traditions, and the third in Roman Catholic and Lutheran traditions.
