Comparative religion Abrahamic religions consists of the three monotheistic religions, Christianity, Islam and Judaism, which claim Abraham (Hebrew "Avraham" אַבְרָהָם; Arabic "Ibrahim" إبراهيم ) as a part of their sacred history. Smaller religions such as Bahá'í Faith that fit this description are sometimes included but are often omitted. The original belief in the One God of Abraham eventually became strictly monotheistic present-day Rabbinic Judaism. Christians believe that Christianity is the fulfillment and continuation of the Jewish Old Testament. Christians believe that Jesus (Hebrew "Yeshua" יֵשׁוּעַ) is the Messiah (Christ) foretold in the Old Testament prophecy, and believe in subsequent New Testament revelations
Christianity and Judaism as inherently polytheistic, and rejects the Christian attempts to explain the Trinity as a complex monotheism. Christian festivals have no religious significance in Judaism and are not celebrated, but some secular Jews in the West treat Christmas as a secular holiday. Christians believe that Christianity is the fulfillment and successor of Judaism, retaining much of its doctrine and many of its practices including monotheism, the belief in a Messiah, and certain forms of worship like prayer and reading from religious texts. Christians believe that Judaism requires blood sacrifice to atone for sins, and believe that Judaism has abandoned this since