Allah is the Arabic language term for God, mainly the monotheistic God of Abraham. Outside of Arabic languages, it is principally associated with Islam, although the term was used in pre-Islamic Arabi
Allah script outside the Old Mosque in Edirne, Turkey
Gereja Kebangunan Kalam Allah [id] (Word of God Revival Church) in Indonesia. Allah is the word for "God" in the Indonesian language - even in Alkitab (Christian Bible, from الكتاب, al-kitāb = the book) translations, while Tuhan is the word for "Lord".
Christians in Malaysia also use the word Allah for "God".
Istanbul, Hagia Sophia, Allah
The Quran, also romanized Qur'an or Koran, is the central religious text of Islam, believed by Muslims to be a revelation directly from God. It is organized in 114 chapters which consist of individual
Allah
…the shared mission of all prophets—including Abraham, Moses, and Jesus—and invites the People of the Book to unite under this common word (3:64). "The Qur'ān insists that Muhammad and his followers worship the same God as the Jews (29:46). The Qur'an's Allah is the same Creator God who covenanted with Abraham…
Two folios of the Birmingham Quran manuscript, an early manuscript written in Hijazi script on parchment carbon-dated to c. 568–645, overlapping with Muhammad's lifetime
Traditionally believed to be Muhammad's first revelation, Sura Al-Alaq, later placed 96th in the Quranic regulations, in current writing style
A page from the Nurse's Quran, written in Kairouani calligraphy. (1020 AD)
Quran − in Mashhad, Iran − said to be written by Ali but, based on the paleography, it is clearly a text written several centuries later. see also:Mushaf of Ali