"The Abrahamic religions, also referred to collectively as the world of Abrahamism, are a group of religions that claim descent from the worship of the God of Abraham, an Ancient Semitic religion of the Bronze Age Israelites, the direct predecessor of various ancient Israelite sects, including the remaining two extant Israelite religions of Judaism and Samaritanism, with all other Abrahamic religions descending from Judaism. The Abrahamic religions are monotheistic, with the term deriving from the patriarch Abraham (a major figure described in the Torah, Tanakh, Bible, and Quran, variously recognized by Jews, Samaritans, Christians, Muslims, and others). The three major Abrahamic religions trace their origins to the first two sons of Abraham: for Jews and Christians it is his second son Isaac, and for Muslims his elder son Ishmael.

Abrahamic religions spread globally through Christianity being adopted by the Roman Empire in the 4th century and Islam by the Umayyad Empire from the 7th century. Today the Abrahamic religions are one of the major divisions in comparative religion (along with Indian, Iranian, and East Asian religions). The major Abrahamic religions in chronological order of founding are Judaism (the source of the other two religions) in the 6th century BCE, Christianity in the 1st century CE, and Islam in the 7th century CE.

Christianity, Islam, and Judaism are the Abrahamic religions with the greatest numbers of adherents. Abrahamic religions with fewer adherents include the Baháʼí Faith, Druzism (sometimes considered a school of Ismaili Islam), Samaritanism, and Rastafari."

               (from Wikipedia)