Full Sibling or Half-Sibling

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    If you have a sibling who shares the same father as you but has a different mother, he is considered a full sibling, halachicly, in all regards. (The same status as a sibling who is of both the same father and mother as you.) But if you share the same mother but have a different father, he is only considered a half-brother and has a different halachic status.

    Can someone please explain the differences in status, halachicly?


    That’s weird but Jewish or non Jewish goes by mother


    i think its because the father is like the king of the house hold.the mother can say, move to a new household, but the ‘king’ will always rule his own household, and ca switch. the mother can. not that women are inferior, but the man is the man OF THE HOUSE. the women can always switch. therefor, the child of the father will always be part of that household. the child of the mother is only a half sibling, because they, along with mother, can switch ‘castles’, while the fathers child is a permanent part of the kings house hold. makes any sense?


    I have just this week talked about this with someone. Obviosuly it is true as the shvatim were considered full brothers, but it never quite made sense to me, as the MOTHER is the one in whose body the children develop, and the religion goes according to the mother,and when we make a mi sheberach for a choleh we use the mother’s name (because it is always a possibility however remote, that the father was not the actual father). I guess the answer is that the Halacha is the Halacha, and Hashem knows the answer, even if some of us don’t quite “get” it.


    yeah, that does make sense, but i think that my explanation also did. i mean, doesnt it? i feel like its also a possible explanation. i mean, “a mans home is his castle”?


    No, mirroronthewall that just sounds weird. In my opinion, it’s cuz the children with the same father will be in the same shevet. So in the same shevet they are closer related, than if same mother but different shevatim.




    According to some midrashim, the shevotim married their sisters from a different mother. Reason they were allowed was because according to the sheva mitzvos bnei noach, a person may marry a half sibling from their father but not a half sibling from their mother, and since it was before matan Torah they were allowed to marry their half sister that was not from the same mother.

    Where is the source that a sibling from a father is considered a full sibling and from only a mother they are considered half?

    🐵 ⌨ Gamanit

    Halachicly if two people share a parent regardless of whether the shared parent is the mother or the father, they are considered full siblings. There is no halachic concept of a half-sibling.

    ☕ DaasYochid ☕

    Maskim to Gamanit, although there are some halachik differences.


    Paternal siblings have a greater shaychus to each other (yerusha, yibbum, etc.) than do maternal siblings.


    Well, this might be true for other countries, but here in the US of A we define a full sibling as having the same mother and father and half-siblings as a having one same parent and one different parent always a half-sibling not a full-sibling according to blood.

    for example:

    use the key below to follow along on United States of America samples of full and half sibling

    SM=Same Mother

    SF=Same Father

    DM=Different Mother

    DF=Different Father

    SF and SM have two children one is a boy(FSM(Full sibling male child) and one is a girl(FSF(Full sibling female child) and they are full sibling to each other

    SF divorces SM and SF married DM and has a child another sister(SFDMdaughter) is a half-sibling to FSM, AND FSF

    SM married DF and has a child, a son that son(SMDF) is a half-sibling to FSF and FSM, but however SMDF and SFDM are step-siblings supposedly.

    Student of Torah

    A person can only do Yibum/Chalitzah to a brother who has the same father.

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