Allah is the common Arabic word for God. In the English language, the word generally refers to God in Islam. The word is thought to be derived by contraction from al-ilāh, which means "the god", and is linguistically related to the Aramaic words Elah and Syriac ܐܲܠܵܗܵܐ (ʼAlāhā) and the Hebrew word El (Elohim) for God.
Usesage of the name in the pre-Islamic or early Islamic period; Rashidun caliphs used the Sassanids symbols (Star and crescent, fire temple, the picture of the last emperor Khosrau II) by adding the phrase Besmela on their coins, instead of designing a new one.
Medallion showing "Allah Jalla Jalaluhu" in the Hagia Sophia, Istanbul, Turkey
Allah script outside the Old Mosque in Edirne, Turkey
Silk textile panel repeating the name Allah, North Africa, 18th century
God in Abrahamic religions
Monotheism—the belief that there is only one deity—is the focus of the Abrahamic religions, which like-mindedly conceive God as the all-powerful and all-knowing deity from whom Abraham received a divine revelation, according to their respective narratives. The most prominent Abrahamic religions are Judaism, Christianity, and Islam. They, alongside Samaritanism, Druzism, the Baháʼí Faith, and Rastafari, all share a common core foundation in the form of worshipping Abraham's God, who is identified as Yahweh in Hebrew and called Allah in Arabic. Likewise, the Abrahamic religions share similar features distinguishing them from other categories of religions:all of their theological traditions are, to some extent, influenced by the depiction of the God of Israel in the Hebrew Bible;
all of them trace their roots to Abraham as a common genealogical and spiritual patriarch.
The Mesha Stele bears the earliest known reference (840 BCE) to the Israelite god Yahweh.
In his 1838 personal history, Joseph Smith wrote that he had seen two personages in the spring of 1820. In 1843, Smith stated that these personages, God the Father and Jesus Christ, had separate, tangible bodies.
