"Massey’s attempt to demonstrate that Jesus is merely a rewrite of Horus is tortured. Take the contention that Horus and Jesus were both of virgin birth. The most common legend about the birth of Horus is that the god Seth dismembered the body of Osiris, his older brother and husband of Isis. Isis collected the pieces of her husband’s body and sewed them back together, then took the form of a bird and fanned Osiris with her wings, reviving him enough to have sex and get herself pregnant with Horus. So it’s sex with a coma patient or necrophilia — not your classic virgin-birth story either way. As for the crucifixion and resurrection, the party involved wasn’t Horus but Osiris, as per the above. Except Osiris wasn’t crucified — Seth initially had him nailed into a coffin. And he wasn’t really resurrected, just revived long enough to be a sperm donor, after which he died again.
Then again, there really isn’t a canonical version of the Horus story. Browsing through the stelae, I find a variant in which the child Horus is stung to death by a scorpion, then restored to life by the god Thoth. So OK, are there points of similarity between Jesus and Horus? I’ll be big about it and say sure. Is one copied from the other? Get out."
The Straight Dope: Was Jesus copied from the Egyptian god Horus?
All About Horus: An Egyptian Copy of Christ? Response to Zeitgeist movie