Abrahamic religions foundational beliefs and thus conceals crucial differences. For example, the common Christian beliefs of Incarnation, Trinity and the resurrection of Jesus are not accepted by Judaism or Islam (see for example Islamic view of Jesus' death). There are key beliefs in both Islam and Judaism that are not shared by most of Christianity (such as strict monotheism and adherence to Divine Law), and key beliefs of Islam, Christianity, and the Bahá'í Faith not shared by Judaism (such as the prophetic and Messianic position of Jesus, respectively). The appropriateness of grouping Judaism, Christianity, and Islam by the terms "Abrahamic religions" or
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