Firstborn (Judaism)
The firstborn or firstborn son (Hebrew בְּכוֹר "bəḵōr") is an important concept in Judaism. The role of firstborn son carries significance in the redemption of the first-born son, in the allocation of a double portion of the inheritance, and in the prophetic application of "firstborn" to the nation of Israel. Etymology and usage. The semitic root B-K-R means "early" or "first" in Ancient Near East Semitic languages. Biblical Hebrew contains various verbs from the B-K-R stem with this association. The plural noun "bikkurim" (vegetable first fruits) also derives from this root. The masculine  noun "bekhor", firstborn, is used of sons, as "Canaan begat Sidon his firstborn" (Genesis 10:15), whereas the feminine noun, and female equivalent, is "bekirah" (בְּכִירָה), firstborn daughter. Derived from "bechor" is the qualitative noun "bekhorah" (בְּכוֹרָה) ("birthright") , related to primogeniture. Hebrew Bible. The earliest account of primogeniture to be widely known in modern times involved Isaac's son Jacob being born second () and Isaac's son, Esau being born first () and entitled to the birthright, but eventually selling it to Isaac's second son, Jacob, for a small amount of food () A similar transfer is shown by the writer of  1 Chronicles 5:1-2 where, although the tribe of Judah prevailed above their brethren, nevertheless the birthright, the double portion of two tribal allotments, was Joseph's. According to the Law of Moses, the firstborn may be either the firstborn of his father, who is entitled to receive a double portion of his father's inheritance (compared to the other siblings), (Deuteronomy 21:17) or the firstborn of his mother. Israel as God's firstborn. In Exodus, Moses is instructed to say to Pharaoh "Thus saith the LORD, Israel is my son, my firstborn. () This is prophetically attached to Ephraim, the  Kingdom of Israel in . Animal firstborn or "firstlings". Aside from the sacrifice of the "firstlings" by Abel, the Law of Moses also proscribes special distinction of animal firstborn. Death of the firstborn of Egypt. The Egyptians also attached significance to primogeniture and birthright. The death of Pharaoh and the Egyptians' firstborn sons at the first Passover is direct recompense for God's identification of Israel as his own firstborn. The Second Temple and Dead Sea scrolls. The understanding of Israel as the national firstborn of God is found in the Dead Sea scrolls 1Q/4Q "Instruction," and probably 4Q369 the "Prayer  of Enosh", as well as in Ben Sira. Hellenistic and Diaspora Judaism. The concept of the firstborn was heavily present in Hellenistic Judaism among the Second Temple Jewish diaspora. In the Septuagint, Israel, then Ephraim, are God's "prototokos" (πρωτότοκος) "firstborn." The use of "firstborn" is taken further along figurative lines. In the pseudepigraphical Testament of Abraham disease is personified as the "prototokos" "firstborn" of Thanatos, the personification of death. In Joseph and Asenath the converted Egyptian princess Asenath prepares to marry Joseph, the "prototokos" "firstborn" of the god of Israel. Philo of Alexandria comments on the inheritance rites of  the firstborn in Deuteronomy, greatly emphasizing and embellishing the superiority of Mosaic Law over Egyptian models. Rabbinical interpretation. According to the pidyon haben (redemption of the firstborn), if the father and mother are both Israelites, the firstborn is required to be redeemed from a Kohen. The firstborn of a mother is referred to in the Bible (Exodus 13:2) as one who "opens the womb" of his mother. The firstborn of one's mother is referred to in the Bible (Exodus 13:2) as one who "opens the womb" of his mother. Therefore, the firstborn of the father exclusively, although considered as  a firstborn regarding his father's inheritance, is "not" considered as a firstborn regarding the requirement to be redeemed, as the mother's womb has already been opened by his half-sibling, the firstborn of his mother. Thus, the Shulchan Aruch rules that only a first born of the mother is required to be redeemed. There is a matter of dispute among the poskim (early rabbinic authorities) regarding whether a first-born son who is a Jewish convert (whose biological mother is not considered to be his mother) or from a caesarean section has the laws of a "bechor". The  firstborn's service to the Jewish people. Originally, the firstborn of every Jewish family was intended to serve as a priest in the temple in Jerusalem as priests to the Jewish people but they lost this role after the sin of the golden calf when this privilege was transferred to the male descendants of Aaron. However, according to some, this role will be given back to the firstborn in a Third Temple when Messiah comes. Until this time, they say, a firstborn son still has certain other roles. Besides receiving double the father's inheritance and requiring a "pidyon haben ," a firstborn son is supposed to fast on the eve of Passover and in the absence of a Levite, a "bechor" washes the hands of the Kohen prior to blessing the Israelites (see: Priestly Blessing). Animal firstborns. In the Hebrew Bible, the feminine plural noun "bechorot" is used to describe "firstlings" of a flock. In rabbinical Hebrew, the masculine noun "bechor" is also used of the first born animal to open the womb of its mother. The animal "firstborn beast" (Hebrew "bechor behema" בכור בהמה) is listed as one of the twenty-four priestly gifts. Today, when there is no  Temple in Jerusalem, most Jewish believers do not give first-born animals to Kohanim. Instead it is customary to sell the mother animal to a non-Jew before it gives birth to the firstborn, and then buy back both the animal and its firstborn. Other Abrahamic religions. The importance of the literal firstborn son is not as greatly developed in Christianity and Islam as it is in Judaism.