Schools of Islamic theology are various Islamic schools and branches in different schools of thought regarding creed. The main schools of Islamic theology include the extant Mu'tazili, Ash'ari, Maturidi, and Athari schools; the extinct ones include the Qadari, Jahmi, Murji', and Batini schools.
The main schism between Sunni, Shia, and Khariji branches of Islam was initially more political than theological, but theological differences have developed over time throughout the history of Islam.
Islamic philosophy is philosophy that emerges from the Islamic tradition. Two terms traditionally used in the Islamic world are sometimes translated as philosophy—falsafa (lit. 'philosophy'), which refers to philosophy as well as logic, mathematics, and physics; and kalam (lit. 'speech'), which refers to a rationalist form of Scholastic Islamic theology which includes the schools of Ash'arism, Maturidism and Mu'tazilism.
Early Islamic philosophy began with al-Kindi in the 2nd century of the Islamic calendar (early 9th century CE) and declined with Ibn Rushd (Averroes) in the 6th century AH (late 12th century CE), broadly coinciding with the period known as the Islamic Golden Age. The death of Ibn Rushd effectively marked the end of a specific discipline of Islamic philosophy usually called the Islamic peripatetic school, and philosophical activity declined significantly in the west of the Islamic world, including al-Andalus and the Maghreb.
Islamic schools and branches have different understandings of Islam. There are many different sects or denominations, schools of Islamic jurisprudence, and schools of Islamic theology, or ʿaqīdah (creed). Within Sunnī Islam, there may be differences, such as different orders (tariqa) within Sufism, different schools of theology (Atharī, Ashʿarī, Māturīdī) and jurisprudence (Ḥanafī, Mālikī, Shāfiʿī, Ḥanbalī). Groups in Islam may be numerous (Sunnīs make up 87-90% of all Muslims), or relatively small in size (Ibadis, Ismāʿīlīs, Zaydīs).
Differences between the groups may not be well known to Muslims outside of scholarly circles, or may have induced enough passion to have resulted in political and religious violence (Barelvism, Deobandism, Salafism, Wahhabism). There are informal movements driven by ideas (such as Islamic modernism and Islamism), as well as organized groups with governing bodies (such as Nation of Islam). Some of the Islamic sects and groups regard certain others as deviant or not being truly Muslim (for example, Sunnīs frequently discriminate against Ahmadiyya, Alawites, Quranists, and sometimes Shīʿas). Some Islamic sects and groups date back to the early history of Islam between the 7th and 9th centuries CE (Kharijites, Mu'tazila, Sunnīs, Shīʿas), whereas others have arisen much more recently (Islamic neo-traditionalism, liberalism and progressivism, Islamic modernism, Salafism and Wahhabism), or even in the 20th century (Nation of Islam). Still others were influential historically, but are no longer in existence (non-Ibadi Kharijites and Murji'ah).
Criticism of Christianity has a long history that stretches back to the initial formation of the religion in the Roman Empire. Critics have challenged Christian beliefs and teachings, as well as actions taken in the name of the faith, from the Crusades to modern terrorism. The arguments against Christianity include claims that it is a faith of violence, corruption, superstition, polytheism, homophobia, bigotry, pontification, abuses of women's rights, and sectarianism.
In the early years of Christianity, the Neoplatonic philosopher Porphyry emerged as one of the major critics with his book Against the Christians, along with other writers like Celsus and Julian. Porphyry argued that Christianity was based on false prophecies that had not yet materialized. Following the adoption of Christianity by the Roman Empire, dissenting religious voices were gradually suppressed by both governmental and ecclesiastical authorities. Christianity has faced significant theological criticism from thinkers of other Abrahamic religions, particularly including Judaism and Islam. Notably, Maimonides, the renowned rabbi, Jewish philosopher, and Torah scholar of the 12th century, argued that Christian practices and doctrines constituted idolatry and deviated from the strict monotheism (shituf) of Jewish and Muslim theologies. Similarly, Islamic scholars have critiqued Christian beliefs about the Trinity and the divinity of Jesus, viewing these concepts as incompatible with the concept of monotheism. These critiques reflect deep theological disagreements rooted in their shared scriptural traditions and divergent doctrinal interpretations. A millennium later, the Protestant Reformation led to a fundamental split in European Christianity and rekindled critical voices about the Christian faith, both internally and externally. In the 18th century, deist philosophers such as Voltaire and Jean-Jacques Rousseau were critical of Christianity as a revealed religion. With the Age of Enlightenment, Christianity was criticized by major thinkers and philosophers, such as David Hume, Thomas Paine, and the Baron d'Holbach. The central theme of these critiques sought to negate the historical accuracy of the Christian Bible and focused on the perceived corruption of Christian religious authorities. Other thinkers, like Immanuel Kant, offered critiques of traditional arguments for the existence of God, while professing to defend Christian theology on novel grounds.
A religious denomination is a subgroup within a religion that operates under a common name and tradition, among other activities.The term refers to the various Christian denominations (for example, non-Chalcedonian, Eastern Orthodox, Catholic, and the branches of Protestantism, such as Lutheranism). It is also used to describe the five major branches of Judaism (Karaite Judaism, Orthodox, Conservative, Reform, and Reconstructionist). Within Islam, it can refer to the branches or sects (such as Sunni and Shia), as well as their various subdivisions, such as sub-sects, schools of jurisprudence, schools of theology and religious movements.
The world's largest religious denomination is the Sunni Islam.
Sunnah is the body of traditions and practices of the Islamic prophet Muhammad that constitute a model for Muslims to follow. For Muslims, the sunnah is what all the Muslims of Muhammad's time supposedly saw, followed, and passed on to the next generations. However, what constitutes the Sunnah, and its interpretation, depends significantly on the specific Islamic sect and school of thought. Sunnis rely on six major canonical hadith collections to document the Sunnah, known as Kutub al-Sittah. For Shias, the sunnah is generally documented in Kutub al-'Arba'a, which give preference to hadiths attributed to the Prophet's family (Ahl al-Bayt) and the Twelve Imams. For Ibadis, the sunnah is documented in the two hadith collections Jami Sahih and Tartib al-Musnad. Sufis hold that Muhammad transmitted his sunnah, including his spiritual values, "through a series of Sufi teachers".
According to classical Islamic theories, the sunnah is embodied in the hadith: verbally transmitted records of the teachings, actions, deeds, and sayings, attributed to Muhammad. Alongside the Qur'an, the Hadith contains the divine revelations (wahy) delivered through Muhammad that make up the primary sources of Islamic law, beliefs, and theology. The sunnah is classified into different types based on Muhammad's specific words (Sunnah Qawliyyah), his actions such as habits and practices (Sunnah Fiiliyyah), and silent approvals (Sunnah Taqririyyah). However, some Muslims, such as Ahl al-Kalam and the Mu'tazilites, have distinguished between the Sunnah and Hadith, accepting the Sunnah as an authoritative practice while being critical of the Hadith's reliability as a source for Islamic law. The Quranist stance on the Sunnah varies from outright rejection to an approach that considers external sources as secondary and dependent on the Qur'an for verification.
The Ascension of Jesus (anglicized from the Vulgate Latin: ascensio Iesu, lit. 'ascent of Jesus') is the Christian and Islamic belief that Jesus ascended to Heaven. Christian doctrine, as reflected in the major Christian creeds and confessional statements, holds that Jesus ascended after his resurrection, where he was exalted as Lord and Christ, sitting at the right hand of God. Islamic doctrine holds that Jesus directly ascended to heaven without dying or resurrecting.
The Gospels and other New Testament writings imply resurrection and exaltation as a single event. The ascension is "more assumed than described", and only Luke and Acts contain direct accounts of it, but with different chronologies.
The Shahada (Arabic: الشَّهَادَةُ aš-šahādatu; Arabic pronunciation: [aʃʃahaːdatʊ], 'the testimony'), also transliterated as Shahadah, is an Islamic oath and creed, and one of the Five Pillars of Islam and part of the Adhan. It reads: "I bear witness that there is no god but God, and I bear witness that Muhammad is the Messenger of God."The Shahada declares belief in the oneness (tawhid) of God and the acceptance of Muhammad as God's messenger. Some Shia Muslims also include a statement of belief in the wilayat of Ali, but they do not consider it as an obligatory part for converting to Islam. A single honest recitation of the Shahada is all that is required for a person to become a Muslim according to most traditional schools.
Ash'arism (/æʃəˈriː/; Arabic: ٱلْأَشْعَرِيّةُ, romanized: al-Ashʿarīyya) is a school of theology in Sunni Islam named after Abu al-Hasan al-Ash'ari, a Sunni jurist, reformer (mujaddid), and scholastic theologian, in the 9th–10th century. It established an orthodox guideline, based on scriptural authority, rationality, and theological rationalism. It is one of the three main schools alongside Maturidism and Atharism.
Al-Ash'ari established a middle way between the doctrines of the Atharī and Muʿtazila schools of Islamic theology, based both on reliance on the sacred scriptures of Islam and theological rationalism concerning the agency and attributes of God. Ashʿarism eventually became the predominant school of theological thought within Sunnī Islam, and is regarded as the single most important school of Islamic theology in the history of Islam.