Though it commonly has been assumed that Nephthys was married to
Set and they have a son
Anubis, recent Egyptological research has called this into question. Levai notes that while
Plutarch's
De Iside et Osiride mentions the deities' marriage, there is very little specifically linking Nephthys and Set in the original early Egyptian sources. She argues that the later evidence suggests that: while Nephthys's marriage to Set was a part of Egyptian mythology, it was not a part of the myth of the murder and resurrection of Osiris. She was not paired with Set the villain, but with Set's other aspect, the benevolent figure who was the killer of
Apophis. This was the aspect of Set worshiped in the western oases during the Roman period, where he is depicted with Nephthys as co-ruler. One of the few sources that explicitly identify Nephthys as the wife of Set within the context of the Osiris myth is Papyrus Berlin P. 8278. This text recounts an episodic part of the Osiris myth in which the men of Set and Horus engage in a military conflict, ultimately leading to Set’s expulsion from Egypt. After consuming the Eye of Horus and becoming intoxicated by it, Set attempts to anally penetrate Nephthys before being discovered by the gods and accused of murdering Osiris. Rather than responding to the accusations made by Isis or Thoth, Set instead laments that the gods have separated him from Nephthys, whom he refers to as the "female donkey," just as he had grabbed her by the tail and was about to penetrate her—insisting that she rightfully belonged to him as his wife. It is Nephthys who assists Isis in gathering and mourning the dismembered portions of the body of Osiris after his murder by the envious Set. Nephthys also serves as the nursemaid and watchful guardian of the infant Horus. The
Pyramid Texts refer to Isis as the "birth-mother" and to Nephthys as the "nursing-mother" of Horus. Nephthys was attested as one of the four "Great Chiefs" ruling in the Osirian cult center of
Busiris in the
Delta and she appears to have occupied an honorary position at the holy city of
Abydos. No cult is attested for her there, though she certainly figured as a goddess of great importance in the annual rites conducted, wherein two chosen females or priestesses played the roles of Isis and Nephthys and performed the elaborate "Lamentations of Isis and Nephthys". There, at Abydos, Nephthys joined Isis as a mourner in the shrine known as the Osireion. These "
Festival Songs of Isis and Nephthys" were ritual elements of many such Osirian rites in major ancient Egyptian cult centers. As a mortuary goddess like Isis,
Neith, and
Serqet, Nephthys was one of the protectresses of the
canopic jars of Hapi. Hapi, one of the
sons of Horus, guarded the embalmed lungs. Thus we find Nephthys endowed with the epithet "Nephthys of the Bed of Life" in direct reference to her regenerative priorities on the embalming table. In the city of
Memphis, Nephthys was duly honored with the title "Queen of the Embalmer's Shop" and there associated with the
jackal-headed god
Anubis as patron. Nephthys was also considered a festive deity whose rites could mandate the liberal consumption of beer. In various reliefs at
Edfu,
Dendera, and Behbeit, Nephthys is depicted receiving lavish beer offerings from the pharaoh which she would "return" using her power as a beer goddess "that [the pharaoh] may have joy with no
hangover". Elsewhere at Edfu, for example, Nephthys is a goddess who gives the pharaoh power to see "that which is hidden by
moonlight". This fits well with more general textual themes that consider Nephthys to be a goddess whose unique domain was darkness or the perilous edges of the desert. Nephthys could also appear as one of the goddesses who assists at childbirth. An ancient Egyptian myth preserved in the
Papyrus Westcar recounts the story of Isis, Nephthys,
Meskhenet, and
Heqet as traveling dancers in disguise, assisting the wife of a priest of
Amun-Re as she prepares to bring forth sons who are destined for fame and fortune. Nephthys's healing skills and status as direct counterpart of Isis, steeped as her sister in "words of power", are evidenced by the abundance of
faience amulets carved in her likeness and by her presence in a variety of magical papyri that sought to summon her famously
altruistic qualities to the aid of mortals. ==New Kingdom cults==