Passion of Osiris (labeled) 4
An overview of the Passion of Osiris, aka Osiris resurrection myth, according to which Set kills his brother Osiris, cuts his body into 14 pieces, and scatters them about the land, so that his soul can never be reborn. His sister-wife Isis recollects 13 of the fourteen pieces, all by the phallus, then mummifies Osiris, and with her sister Nephthys, magically brings him back long enough to procreate, and produce the offspring of Horus, who avenges his dead father (now god of the afterlife) by killing his uncle Set, thereby bringing order to the land. By 300AD, this had been monotheistically-rewritten into the of the Passion of Christ. [1]
In religio-mythology, Passion of Osiris, from the Greek πάσχειν (paschein), "to suffer", is the 2,800BC mythological story, much of which is carved on the walls of the Dendera Temple (100BC-68AD), of the death and resurrection of the Egyptian god Osiris — of which two parallel version exist — who is killed and dismembered via the jealously and hatred of his brother Set, but later reassembled and brought back to life via mummification and temporary time-stopping resurrection by his wife-sister Isis, during which time they have magical sex, producing the offspring man-god Horus, who avenges his father Osiris (now the king of the afterlife), by killing his uncle Set, thereby restoring justice and stability to Egypt. Two different overlapping versions of story of Osiris exist. [1]

Passion of Christ
The original 2,800BC polytheist version of the death and resurrection of Osiris eventually became the the 100AD death and resurrection of Jesus, aka the “Passion of Christ”, both themselves, in turn, being derivatives of the older 3,100BC story of the annual death of Ra or sun at winter solstice, refers to

The story of the death and resurrection of Osiris goes by various names, including: “story of Osiris” (203K), “story of Osiris, Isis, and Horus”, “legend of Osiris” (198K), “death of Osiris” (150K) or “two deaths of Osiris”, passion of Osiris (21K), aka “Osiris myth” (18K) or “Osiris legend” (6K), “Osiris resurrection” (4K), Osiris cycle (2K) or Osirian cycle (2K), numbers being Google search return dominance.

The first semi-modern historical account of the death and resurrection of Osiris was given by Plutarch. (Ѻ)

The following are related quotes:

“The nearest thing to a truly national religion in Egypt was the Osiris cycle. The story is not extant in full epic version but must be pieced together from several ancient and classical sources: the Pyramid Texts of the Old Kingdom, the Coffin Texts of the Middle Kingdom, the Book of the Dead from the New Kingdom, a ribald text entitled The Contest of Horus and Seth for Rule from the Twentieth Dynasty, and the summary of Plutarch in Concerning Isis and Osiris from the second century C.E.”
— Patrick Reid (1987), Readings in Western Religious Thought [2]

1. Thims, Libb. (2015). “Passion of Osiris to Passion of Christ” (Ѻ), Zerotheism for Kids, Lecture #8, Sep 7.
2. Reid, Patrick V. (1987). Readings in Western Religious Thought: the Ancient World (pg. 32). Paulist Press.

● Anon. (2012). “Legend of Osiris” (Ѻ), WoodsMidnight, Jun 13.

External links
Osiris myth – Wikipedia.

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