Abrahamic religions tradition claims that the Jews are descended from Abraham, and adherents of Judaism derive their spiritual identity from Abraham as the first of the three "fathers" or biblical Patriarchs: Abraham, Isaac, and Jacob. All the major Abrahamic religions claim a direct lineage to Abraham, although in Christianity this is understood in spiritual terms: Adam Dodds argues that the term "Abrahamic faiths", while helpful, can be considered misleading, as it conveys an unspecified historical and theological commonality that is problematic on closer examination. While there is commonality among the religions, in large measure their shared ancestry is peripheral to their respective
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