Book of Kells, Chi Rho folio, c. 800 · public domain

Christianity

Tradition·Founded 30 CE·est. ~2.4 billion worldwide

Judaism → Christianity → 11 branches

Branch

Figures

who it looks to — gods, spirits, ancestors; some rooms are empty on principle All 18 →
The ultimate — what this line takes as final
T The Holy Spirit — the person without a face. Fully God and structurally hard to picture, which is why the Spirit gets a bird. The creed of 381 had to add a clause insisting on the divinity, because the argument was still running. The last hundred years have belonged to the Spirit: Pentecostal and charismatic Christianity went from nothing to more than half a billion people. Domain Sanctification, gifts, and the church's continuing lifeStanding Worshipped and glorified together with the Father and the Son Meet them — context →
G God — Father, Son, and Holy Spirit. One God in three persons: the Father who creates, the Son who redeems, the Spirit who sustains — relationship inside the divine life itself. Domain Creation, redemption, sanctificationStanding Worshipped — the sole object of Christian prayer Meet them — context & 1 source →
J Jesus — the content of the faith. Teacher, healer, crucified and risen: Christianity does not merely follow his teaching — it claims him, personally, as God's self-disclosure. Domain The incarnate Son — teacher, healer, crucified and risen LordStanding Not the founder of the faith so much as its content Meet them — context & 2 sources →
Prophets & messengers — who carries the word between
J John the Forerunner. Ate locusts, wore hair, told a king what he thought of his marriage, and lost his head for it. The East gives him the honour it gives nobody else but Mary, and he stands to Christ's left on every iconostasis in the world. Domain Preparing the way; the last prophet of the old orderStanding In the East the greatest of the saints after Mary — his place on the iconostasis is fixed by rule Meet them — context →
T The angels. Messengers and ministers — Gabriel announces, Michael contends; created spirits in service, never to be worshipped. Domain Message, protection, praiseStanding Venerated, never worshipped Meet them — context →
Saints & exemplars — lives held up as the pattern
M Mary Magdalene — apostle to the apostles. She found the tomb, and the men did not believe her. Then a sixth-century pope merged her with an anonymous sinful woman and a Mary of Bethany, and fourteen centuries of art painted her as a penitent prostitute on the strength of it. Rome unpicked the conflation in 1969 and raised her feast to the apostles' rank in 2016. Domain First witness of the resurrection; the one sent to tell the menStanding Her feast was raised to the rank of the apostles' in 2016, with the old title apostle to the apostles restored Meet them — context & 1 source →
T The saints. The faithful dead, alive in God — venerated and asked for prayers in the Catholic and Orthodox streams; honored as examples in most Protestant ones. Domain Intercession and exampleStanding Asked for prayers in the Catholic and Orthodox streams; honored as examples in most others Meet them — context →
T The martyrs. Not a historical category. Twenty-one Coptic and Ghanaian labourers were beheaded on a Libyan beach in February 2015 and were in the Coptic calendar within the week. The altar in an ancient church is a tomb, and the relic underneath is the point. Domain Witness under execution — the Greek word martyr simply means witnessStanding The first Christians ever venerated; altars in the older churches are still built over relics Meet them — context →
A Antony of Egypt — the first one to leave. He heard one verse read in church, sold everything, and walked into the desert around the year 270. Others followed him out, which was not the plan, and monasticism — Coptic first, then Greek, then Latin, then everything — starts there. Domain The desert, and the pattern for every monk who came afterStanding Venerated in every ancient church; the Coptic monastery bearing his name has been continuously inhabited since the fourth century Meet them — context & 1 source →
A Augustine of Hippo — the North African who set the terms. A bishop in what is now Algeria whose arguments about grace, will and sin became the operating system of Western Christianity. The Reformation was largely Augustine against Augustine; Calvin quoted him constantly, and so did the Council of Trent. Domain Grace, sin, the will, memory, time, and the two citiesStanding A doctor of the Latin church and a saint in the Greek one; the Reformation and its opponents both fought using his sentences Meet them — context & 1 source →
M Mary — the yes. The incarnation turned on a consent: let it be done to me. The most depicted woman in history, because the doctrine needed a mother. Domain Mother of Jesus; the human yes on which the incarnation turnedStanding Venerated East and West; the Reformation's quietest dividing line Meet them — context & 2 sources →
O Our Lady of Guadalupe. A brown-skinned, pregnant Virgin who spoke Nahuatl to an indigenous man on a hill that had been a goddess's shrine. Twelve million people go to her basilica in the days around 12 December. Most of Latin American Catholicism runs through this figure rather than around her. Domain Mexico, the Americas, and everyone told they do not countStanding The most visited Marian shrine on earth — roughly twelve million people in the five days around 12 December Meet them — context & 1 source →
P Peter — the rock that cracked. Denied him three times, was asked three times do you love me, and was given the flock anyway: apostleship as restored failure. Domain First of the apostles; the denier restored to shepherdStanding The apostle chosen for his failures as much as his faith Meet them — context & 1 source →
T Thomas — and the church he left in India. He asked for evidence and got it, which earned him a nickname he never shook. The St Thomas Christians of Kerala hold that he landed at Kodungallur in 52 CE, and have been a distinct church, in Syriac, ever since — older than the Christianity of Britain, Germany or Russia. Domain The one who wanted to see the wounds; and, in Kerala, the apostle of IndiaStanding The St Thomas Christians of Kerala date their church to his arrival at Kodungallur in 52 CE — older than the Christianity of most of Europe Meet them — context →
P Paul — the turned persecutor. Knocked down on the Damascus road and got up someone else: his letters carried the faith across the empire and still set its arguments. Domain Apostle to the nations; the persecutor turned planterStanding The faith's first theologian; every Christian century argues with him Meet them — context & 1 source →
T Tekle Haymanot — the one who stood. Ethiopia's national saint, painted with six wings and one leg: the other, the tradition says, gave way after seven years of praying upright. He founded the monastery at Debre Libanos, and its abbot outranked everyone in the Ethiopian church except the Abuna. Domain Ethiopian monasticism; founder of the monastery that became Debre Libanos in 1284Standing Ethiopia's great national saint; churches named for him run from Addis Ababa to Michigan Meet them — context →
C Constantine and Helena. He stopped the persecutions, called the council at Nicaea, and made the executed man's sign into a military standard. The East canonised him as equal to the apostles. The West has spent a century and a half arguing about whether that year was the church's rescue or its capture. Domain The emperor who stopped the persecutions and convened the first councilStanding Saints in the East, titled equal to the apostles; in the West, the moment the church started being uneasy about itself Meet them — context →
Adversaries — named in order to be refused
S Satan — the adversary. A creature, not a rival god: the accuser whose defeat is already announced. Christianity keeps its dualism strictly temporary. Domain Temptation and accusationStanding Renounced — addressed only in the baptismal no Meet them — context →

Core Tenets

21 — a sample of the center, never the sum All 21 →
The shared center — held across the tradition
Creation is good, and it was made out of nothing. God made matter and pronounced it good six times before pronouncing it very good. The claim was aimed squarely at the Gnostics, who held the physical world to be the botched work of a lesser god, and it is why Christianity never produced a doctrine that the body is a prison. Go deeper — context →
In Jesus, God became human. The incarnation: fully God and fully man, born under an empire and executed by it. Go deeper — context & 1 source →
The resurrection defeated death. The tomb was empty — the claim on which Paul stakes the entire faith. Go deeper — context & 1 source →
Love of God and neighbor is the whole law. The double commandment — the ethic every branch, whatever else it disputes, shares. Go deeper — context & 1 source →
The church is the body of Christ. Not a metaphor of membership but of anatomy: many parts, one body, no part able to say to another I have no need of you. The community is the continued incarnation. Go deeper — context & 1 source →
Christ will come again. The creed's unfinished clause: history has a direction and a judge, and the same figure who came in weakness returns in glory. Every liturgy leans toward it — come, Lord. Go deeper — context & 1 source →
The body rises. Not the soul only. The creed says resurrection of the body and it means the body. That is why Christians buried rather than burned for most of their history, why the catacombs exist, and why the Orthodox still resist cremation — Rome permitted it in 1963, with conditions about where the ashes may end up. Go deeper — context →
The kingdom has arrived and has not arrived. Jesus announced it as present and then taught his followers to pray for its coming. Every Christian ethic since has lived in that gap: the world is already claimed, and visibly is not yet what it was claimed for. Go deeper — context →
Held by most — broad, but not universal
God is one being in three persons. Father, Son, and Spirit — the Trinity is the grammar of Christian speech about God. Go deeper — context & 1 source →
Something in us is bent at the root. Not that people do wrong, but that they arrive already wanting to. Augustine called it original sin and read it as inherited guilt; the Greek East calls it ancestral sin and inherits mortality without the guilt. Same story, two very different bills. Go deeper — context →
Scripture is God-breathed. Every branch says the words; none agrees on the mechanics. The Chicago Statement of 1978 made inerrancy on every subject a Protestant boundary marker. Vatican II limited the guarantee to what God wanted put down for the sake of our salvation. The Orthodox read the text only inside the Fathers and the liturgy, and find the question oddly framed. Go deeper — context →
God is met, not comprehended. The apophatic instinct runs through the whole tradition: what God is not can be said; what God is cannot. Gregory Palamas gave the East its formula in the 1340s — the divine essence stays unreachable, the divine energies are fully God and are genuinely encountered. The Latin West took the other road and reasoned by analogy. Go deeper — context →
Contested within — affirmed by some schools, refused by others
The cross did something — and no council ever said what. Ransom paid to death, a debt settled to God's honour, the penalty borne in our place, the powers publicly defeated, love demonstrated past argument. Christianity defined the Trinity at Nicaea and the two natures at Chalcedon, and left the meaning of the crucifixion undefined for two thousand years. Go deeper — context & 1 source →
Salvation is grace, not wage. Rescue is received, not earned — how faith and works relate is exactly where the branches divide. Go deeper — context & 1 source →
One person, two natures — or one nature out of two. Chalcedon, 451: Christ is made known in two natures, without confusion and without division. The Copts, Armenians, Ethiopians and Syriacs refused the wording and have been a separate communion ever since — the oldest surviving split in Christianity, and by the joint statements signed at Chambesy in 1989 and 1990, largely a fight over one Greek noun. Go deeper — context & 1 source →
The Spirit proceeds from the Father — and, says the West, the Son. One Latin word, filioque, added to a Greek creed. Spain put it in at Toledo in 589, Rome was singing it by 1014, and Constantinople has never accepted it. Formally it is a question about the inner life of God. Practically it was about who is allowed to edit the creed. Go deeper — context →
The bread is the body. Rome says the substance changes and the appearances do not. Orthodoxy says it changes and declines to explain the mechanism. Luther said Christ is in, with and under the bread; Zwingli said the meal remembers him. No other Christian sentence has got more people killed. Go deeper — context →
Mary is the God-bearer. Theotokos was settled at Ephesus in 431, and it is a claim about her son rather than about her. What came after is not settled: the perpetual virginity, which Luther and Calvin both kept; the Immaculate Conception, defined by Rome alone in 1854; the Assumption, defined in 1950 and rejected by the Orthodox, who keep the feast anyway. Go deeper — context →
The dead are not out of reach. Catholics and Orthodox ask the saints to pray for them and pray for their own dead by name at every liturgy. Purgatory is the Latin account of why the second one helps; the East prays for the dead just as hard and refuses the Latin machinery. The Reformers cut both, and the argument has never closed. Go deeper — context →
There is a judgment, and something is at stake in it. Eternal conscious punishment is the historic majority position. Annihilationists hold that the lost simply cease. Universalists hold that everyone is finally restored, a reading Gregory of Nyssa held openly and a version of which was condemned in 553. The question is louder now than it has been in centuries. Go deeper — context & 1 source →
The image is permitted — and the church fought a civil war to decide it. Byzantium smashed its own icons from 726 and again from 815 before the Second Council of Nicaea and then the year 843 settled it: the incarnation makes God depictable, and the honour paid to the image passes to the one depicted, not to the wood. Rome agreed. Calvin did not, and Reformed churches still whitewash their walls. Go deeper — context & 1 source →

Cosmos & Afterlife

how reality is built, and what follows death
The nature of reality

Created good, fallen, being redeemed

After death

Resurrection and judgment; life everlasting

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