Martin Luther was famously excommunicated as a heretic by
Pope Leo X by his
papal bull Decet Romanum Pontificem in 1520.
Amalrician heretics in 1210, in the presence of King
Philip II Augustus. In the background is the
Gibbet of Montfaucon and, anachronistically, the
Grosse Tour of the
Temple. Illumination from the
Grandes Chroniques de France, . In
Titus 3:10, it is said that a divisive person should be warned twice before others separate from them. The Greek term for "divisive person" became a technical term in the early Church for a type of heretic who promoted dissension. In contrast, correct teaching is called "sound" because it strengthens orthodox belief and protects it against the "corrupting" influence of heretical teachers.
Tertullian () implied that it was the Jews who most inspired heresy in Christianity: "From the Jew the heretic has accepted guidance in this discussion [that
Jesus was not the Christ]." This is largely because Tertullian does not consider Christianity as an additional religion but rather a continuation of Judaism with the Jewish messianic component fulfilled. The use of the word
heresy was given wide currency by
Irenaeus in his 2nd-century tract
Contra Haereses (
Against Heresies) to describe and discredit his opponents during the early centuries of the Christian community. He described the community's beliefs and doctrines as
orthodox (from ,
orthos, "straight" or "correct" and ,
doxa, "belief") and the
Gnostics' teachings as heretical. He also invoked the concept of
apostolic succession to support his arguments.
Constantine the Great, who along with
Licinius had decreed toleration of Christianity in the Roman Empire by what is commonly called the
Edict of Milan, and was the first Roman Emperor baptized, set precedents for later policy. By Roman law the Emperor was
Pontifex Maximus, the high priest of the
College of Pontiffs (
Collegium Pontificum) of all recognized religions in
ancient Rome. To put an end to the doctrinal debate initiated by
Arius, Constantine called the first of what would afterwards be called the
ecumenical councils and then enforced orthodoxy by Imperial authority. The first known usage of the term in a legal context was in AD 380 by the
Edict of Thessalonica of
Theodosius I, which made Christianity the
state church of the Roman Empire. Prior to the issuance of this edict, the Church had no state-sponsored support for any particular legal mechanism to counter what it perceived as "heresy". By this edict the state's authority and that of the Church became somewhat overlapping. One of the outcomes of this blurring of Church and state was the sharing of state powers of legal enforcement with church authorities. Within six years of the official criminalization of heresy by the Emperor, the first Christian heretic to be executed,
Priscillian, was condemned in 386 by Roman secular officials for sorcery, and put to death with four or five followers. However, his accusers were excommunicated both by Ambrose of Milan and by Pope Siricius, who opposed Priscillian's heresy, but "believed capital punishment to be inappropriate at best and usually unequivocally evil." Those who possessed writings of Arius were sentenced to death. In the 7th-century text
Concerning Heresy,
Saint John of Damascus named
Islam as Christological heresy, referring to it as the "heresy of the Ishmaelites" (see
medieval Christian views on Muhammad). The position remained popular in Christian circles well into the 20th century, by theologians such as the Congregationalist cleric
Frank Hugh Foster and the Roman Catholic historian
Hilaire Belloc, the latter describing it as "the great and enduring heresy of Mohammed." For some years after the
Reformation, Protestant churches were also known to execute those they considered heretics; for example,
Michael Servetus was declared a heretic by both the
Reformed Church and
Catholic Church for rejecting the Christian doctrine of the
Holy Trinity. The last known heretic executed by sentence of the Catholic Church was Spanish schoolmaster
Cayetano Ripoll in 1826. The number of people executed as heretics under the authority of the various "ecclesiastical authorities" is not known.{{refn|Only very fragmentary records have been found of the executions carried out under Christian "heresy laws" during the first millennium. Somewhat more complete records of such executions can be found for the second millennium. To estimate the total number of executions carried out under various Christian "heresy laws" from AD 385 until the last official Catholic "heresy execution" in 1826 would require far more complete historical documentation than is currently available. The Catholic Church by no means had a monopoly on the execution of heretics. The charge of heresy was a weapon that could fit many hands. A century and a half after heresy was made a state crime, the
Vandals (a heretical Christian Germanic tribe), used the law to prosecute thousands of (orthodox) Catholics with penalties of torture, mutilation, slavery and banishment. The Vandals were overthrown; orthodoxy was restored; "No toleration whatsoever was to be granted to heretics or schismatics." Heretics were not the only casualties. 4000 Roman soldiers were killed by heretical peasants in one campaign. Some lists of
heretics and
heresies are available. About seven thousand people were burned at the stake by the
Catholic Inquisition, which lasted for nearly seven centuries. On 11 July 2007,
Pope Benedict XVI stated that some Protestant groups are "ecclesial communities" rather than Churches. Representatives of some of these Christian denominations accused the Vatican of effectively calling them heretics. However, Pope BenedictXVI clarified that the phrase "ecclesial community" did not necessitate explicit heresy, but only that the communities lacked certain "essential elements" of an apostolic church, as he had written in the document
Dominus Iesus.
Catholicism of
Mérindol in 1545 In the
Catholic Church, obstinate and willful manifest heresy is considered to spiritually cut one off from the Church, meriting
excommunication automatically (
latae sententiae). The
1983 Code of Canon Law defines heresy as, “the obstinate denial or obstinate doubt after the reception of baptism of some truth which is to be believed by divine and Catholic faith”. The 6th century civil code
Codex Justinianus (1:5:12) defines "everyone who is not devoted to the Catholic Church and to our Orthodox holy Faith" a heretic, disallowing such from positions of authority in the Eastern Roman Empire. The diffusion of the almost
Manichaean sect of
Paulicians westwards gave birth to the famous 11th- and 12th-century heresies of Western Europe. The first one was that of
Bogomils in modern-day Bulgaria, a sort of sanctuary between Eastern and Western Christianity. By the 11th century, more organised groups such as the
Patarini, the
Dulcinians, the
Waldensians and the
Cathars were beginning to appear in the towns and cities of northern Italy, southern France and Flanders. In France the Cathars grew to represent a popular mass movement and the belief was spreading to other areas, though some historians such as
Robert Ian Moore point out a paucity of direct evidence. Most contemporary historians of science believe the Galileo affair is an exception in the overall relationship between science and Christianity.
Pope Gregory I stigmatized Judaism and the Jewish people in many of his writings. He described Jews as enemies of Christ: "The more the
Holy Spirit fills the world, the more perverse hatred dominates the souls of the Jews." He labeled all heresy as "Jewish", claiming that Judaism would "pollute [Catholics and] deceive them with sacrilegious seduction." The identification of Jews and heretics in particular occurred several times in
Roman-Christian law. heretics defeated five anti-Hussite
Crusades ordered by the Pope.
Lutheranism Martin Luther and
Philip Melanchthon, who played an instrumental part in the formation of the
Lutheran Churches, condemned
Johannes Agricola and his doctrine of
antinomianismthe belief that Christians were free from the moral law contained in the
Ten Commandmentsas a heresy. The
Augsburg Confession of 1530, which is among the foundational documents of Lutheranism, lists 10 heresies by name which are condemned:
Manichaeans,
Valentinians,
Arians,
Eunomians,
Mohammedans,
Samosatenes,
Pelagians,
Anabaptists,
Donatists and "certain Jewish opinions".
Anglicanism The
39 Articles of the
Anglican Communion condemn
Pelagianism as a heresy. In Britain, the 16th-century
English Reformation resulted in a number of executions on charges of heresy. During the thirty-eight years of
Henry VIII's reign, about sixty heretics, mainly Protestants, were executed and a rather greater number of Catholics lost their lives on grounds of political offences such as treason, notably
Sir Thomas More and Cardinal
John Fisher, for refusing to accept the king's supremacy over the Church in England. Under
Edward VI, the heresy laws were repealed in 1547 only to be reintroduced in 1554 by
Mary I; even so two radicals were executed in Edward's reign (one for denying the reality of the incarnation, the other for denying Christ's divinity). Under Mary, around two hundred and ninety people were burned at the stake between 1555 and 1558 after the restoration of papal jurisdiction. The last execution of a "heretic" in England occurred under
James VI and I in 1612. Although the charge was technically one of "blasphemy" there was one later execution in Scotland (still at that date an entirely independent kingdom) when in 1697
Thomas Aikenhead was accused, among other things, of denying the doctrine of the Trinity. Another example of the persecution of heretics under Protestant rule was the execution of the
Boston martyrs in 1659, 1660, and 1661. These executions resulted from the actions of the
Anglican Puritans, who at that time wielded political as well as ecclesiastic control in the
Massachusetts Bay Colony. At the time, the colony leaders were apparently hoping to achieve their vision of a "purer absolute theocracy" within their colony. As such, they perceived the teachings and practices of the rival Quaker sect as heretical, even to the point where laws were passed and executions were performed with the aim of ridding their colony of such perceived "heresies."
Methodism The
Articles of Religion of the
Methodist Churches teach that
Pelagianism is a heresy. He taught that Christian believers are bound to follow the
moral law for their
sanctification. Methodist Christians thus teach the necessity of following the moral law as contained in the Ten Commandments, citing
Jesus' teaching, "If ye love me, keep my commandments" (cf. Saint John 14:15). ==Islam==