Christian symbolism is the use of symbols, including archetypes, acts, artwork or events, by Christianity. It invests objects or actions with an inner meaning expressing Christian ideas.

The symbolism of the early Church was characterized by being understood by initiates only, while after the legalization of Christianity in the Roman Empire during the 4th century more recognizable symbols entered in use. Christianity has borrowed from the common stock of significant symbols known to most periods and to all regions of the world.

Only a minority of Christian denominations have practiced aniconism, or the avoidance or prohibition of types of images. These include early Jewish Christian sects, as well as some modern denominations such as Baptists that prefer to some extent not to use figures in their symbols due to the Decalogue's prohibition of idolatry.

Early Christian symbols

Cross and crucifix

The shape of the cross, as represented by the letter T, came to be used as a "seal" or symbol of Early Christianity by the 2nd century."The cross as a Christian symbol or 'seal' came into use at least as early as the second century (see "Apost. Const." iii. 17; Epistle of Barnabas, xi.-xii.; Justin, "Apologia," i. 55–60; "Dial. cum Tryph." 85–97); and the marking of a cross upon the forehead and the chest was regarded as a talisman against the powers of demons (Tertullian, "De Corona," iii.; Cyprian, "Testimonies," xi. 21–22; Lactantius, "Divinæ Institutiones," iv. 27, and elsewhere). The Christian Fathers had to defend themselves, as early as the second century, against the charge of being worshipers of the cross, as may be learned from Tertullian, "Apologia," xii., xvii., and Minucius Felix, "Octavius," xxix. Christians used to swear by the power of the cross. CROSS:, Jewish Encyclopaedia. At the end of the 2nd century, it is mentioned in the Octavius of Minucius Felix, rejecting the claim by detractors that Christians worship the cross."Crosses, moreover, we neither worship nor wish for.1815 You, indeed, who consecrate gods of wood, adore wooden crosses perhaps as parts of your gods. For your very standards, as well as your banners; and flags of your camp, what else are they but crosses glided and adorned? Your victorious trophies not only imitate the appearance of a simple cross, but also that of a man affixed to it. We assuredly see the sign of a cross,1816 naturally, in the ship when it is carried along with swelling sails, when it glides forward with expanded oars; and when the military yoke is lifted up, it is the sign of a cross; and when a man adores God with a pure mind, with hands outstretched. Thus the sign of the cross either is sustained by a natural reason, or your own religion is formed with respect to it." Cruces etiam nec colimus, nec optamus. Vos plane qui ligneos deos consecratis, cruces ligneas, ut deorum vestrorum partes, forsitan adoratis. (0332B) Nam et signa ipsa et cantabra et vexilla castrorum, quid aliud quam inauratae cruces sunt et ornatae? Tropaea vestra victricia, non tantum simplicis crucis faciem, verum et affixi hominis imitantur. Signum sane crucis naturaliter visimus in navi, quum velis tumentibus vehitur, quum expansis palmulis labitur; et quum erigitur iugum, crucis signum est, et quum homo, porrectis manibus, Deum pura mente veneratur. Ita signo crucis aut ratio naturalis innititur, aut vestra religio formatur. (Octavius of Minucius Felix, chapter 29) The cross (crucifix, Greek stauros) in this period was represented by the letter T. Clement of Alexandria in the early 3rd century calls it ("the Lord's sign") and he repeats the idea, current as early as the Epistle of Barnabas, that the number 318 (in Greek numerals, ΤΙΗ) in was a foreshadowing (a "type") of the cross (T, an upright with crossbar, standing for 300) and of Jesus (ΙΗ, the first two letters of his name ΙΗΣΟΥΣ, standing for 18).Stromata, book VI, chapter XI

Clement's contemporary Tertullian also rejects the accusation that Christians are crucis religiosi (i.e. "adorers of the gibbet"), and returns the accusation by likening the worship of pagan idols to the worship of poles or stakes.Apology., chapter xvi. Tertullian uses crux "cross", palus "pole" and stipes "stake" interchangeably for rhetoric effect: "Then, if any of you think we render superstitious adoration to the cross, in that adoration he is sharer with us. If you offer homage to a piece of wood at all, it matters little what it is like when the substance is the same: it is of no consequence the form, if you have the very body of the god. And yet how far does the Athenian Pallas differ from the stock of the cross, or the Pharian Ceres as she is put up uncarved to sale, a mere rough stake and piece of shapeless wood? Every stake fixed in an upright position is a portion of the cross; we render our adoration, if you will have it so, to a god entire and complete. We have shown before that your deities are derived from shapes modelled from the cross." Sed et qui crucis nos religiosos putat, consecraneus noster erit. Cum lignum aliquod propitiatur, viderit habitus, dum materiae qualitas eadem sit; viderit forma, dum id ipsum dei corpus sit. Et tamen quanto distinguitur a crucis stipite Pallas Attica, et Ceres Pharia, quae sine effigie rudi palo et informi ligno prostat? Pars crucis est omne robur, quod erecta statione defigitur; nos, si forte, integrum et totum deum colimus. Diximus originem deorum vestrorum a plastis de cruce induci. In his book De Corona, written in 204, Tertullian tells how it was already a tradition for Christians to trace repeatedly on their foreheads the sign of the cross."At every forward step and movement, at every going in and out, when we put on our clothes and shoes, when we bathe, when we sit at table, when we light the lamps, on couch, on seat, in all the ordinary actions of daily life, we trace upon the forehead the sign" (De Corona, chapter 3)

While early Christians used the T-shape to represent the cross in writing and gesture, the use of the Greek cross and Latin cross, i.e. crosses with intersecting beams, appears in Christian art towards the end of Late Antiquity. An early example of the cruciform halo, used to identify Christ in paintings, is found in the Miracles of the Loaves and Fishes mosaic of Sant'Apollinare Nuovo, Ravenna (dated ).

Instances of the St Thomas cross, a Greek cross with clover leaf edges, popular in southern India,see: "Granite Objects in Kerala Churches", in Glimpses of Nazraney Heritage, George Menachery, SARAS, 2005; and "Thomas Christian Architecture", in George Menachery, ed. The St. Thomas Christian Encyclopaedia of India, Vol. 2, 1973 date to about the 6th century.

The Patriarchal cross, a Latin cross with an additional horizontal bar, first appears in the 10th century.

The Celtic cross is a form of ringed cross, usually consisting of a Christian cross with a circular nimbus around the intersection of the arms and stem. It is especially associated with medieval Insular Christian art and high crosses in Ireland and Britain. Although the origin of the ringed form has been debated, the Celtic cross as a documented Christian symbol is generally associated with early medieval Ireland and Britain rather than with a clearly established pre-Christian origin.

Although the cross was used as a symbol by early Christians, the crucifix, i.e. depictions of the crucifixion scene, were rare prior to the 5th century; some engraved gems thought to be 2nd or 3rd century have survived, but the subject does not appear in the art of the Catacombs of Rome.Schiller, Gertrud, Iconography of Christian Art, Vol. II, 1972, 89–90, fig. 321. The purported discovery of the True Cross by Constantine's mother, Helena, and the development of Golgotha as a site for pilgrimage led to a change of attitude. It was probably in Palestine that the image developed, and many of the earliest depictions are on the Monza ampullae, small metal flasks for holy oil, that were pilgrim's souvenirs from the Holy Land, as well as 5th century ivory reliefs from Italy.Schiller, Gertrud, Iconography of Christian Art, Vol. II, 1972, 89–90, figs. 322–326.

In the early medieval period, the plain cross became depicted as the crux gemmata, covered with jewels, as many real early medieval processional crosses in goldsmith work were. The first depictions of crucifixion displaying suffering are believed to have arisen in Byzantine art, where the S-shaped slumped body type was developed. Early Western examples include the Gero Cross and the reverse of the Cross of Lothair, both from the end of the 10th century.

Marie-Madeleine Davy (1977) described in great detail Romanesque Symbolism as it developed in the Middle Ages in Western Europe.M.-M. Davy, Initiation à la Symbolique Romane. Nouv. éd. Paris: Flammarion, 1977.

Ichthys

Among the symbols employed by the early Christians, that of the fish seems to have ranked first in importance. Its popularity among Christians was due principally to the famous acrostic consisting of the initial letters of five Greek words forming the word for fish (Ichthus or Ιχθυς), which words briefly but clearly described the character of Christ and the claim to worship of believers: "" (Iēsous Christos Theou Huios Sōtēr), meaning Jesus Christ, God's Son, Saviour. This explanation is given among others by Augustine in his Civitate Dei.

Alpha and Omega

The use since the earliest Christianity of the first and the last letters of the Greek alphabet, alpha (α or Α) and omega (ω or Ω), derives from the statement said by Jesus (or God) himself "I am Alpha and Omega, the First and the Last, the Beginning and the End" (, also 1:8 and 21:6).

Staurogram

The Staurogram ⳨ (from the Greek , i.e. cross), also Monogrammatic Cross or Tau-Rho symbol, is composed by a tau (Τ) superimposed on a rho (Ρ). The Staurogram was first used to abbreviate the Greek word for cross in very early New Testament manuscripts such as P66, P45 and P75, almost like a nomen sacrum, and may visually have represented Jesus on the cross.

Ephrem the Syrian in the 4th century explained these two united letters stating that the tau refers to the cross, and the rho refers to the Greek word "help" ( [sic]; proper spelling: ) which has the numerological value in Greek of 100 as the letter rho has. In such a way the symbol expresses the idea that the Cross saves. The two letters tau and rho can also be found separately as symbols on early Christian ossuaries.

The Monogrammatic Cross was later seen also as a variation of the Chi Rho symbol, and it spread over Western Europe in the 5th and 6th centuries.

Chi Rho

The Chi Rho is formed by superimposing the first two (capital) letters chi and rho (ΧΡ) of the Greek word "ΧΡΙΣΤΟΣ", meaning Christ, in such a way to produce the monogram. Widespread in ancient Christianity, it was the symbol used by the Roman emperor Constantine I as vexillum (named Labarum).

IH monogram

The first two letters of the name of Jesus in Greek, iota (Ι) and eta (Η), sometime superimposed one on the other, or the numeric value 18 of in Greek, was a well known and very early way to represent Christ. This symbol was already explained in the Epistle of Barnabas and by Clement of Alexandria. For other christograms such as IHS, see Article Christogram.

IX monogram