A visual of how the Egypt god Geb, of Heliopolis creation myth (3100BC), was monotheistically morphed over the years into the character of the man Joseph, a carpenter, who becomes the step-father of the man-god Jesus born to a virgin named Mary, the baby Jesus (baby sun) being born in the house of Joseph (house of Geb) on Dec 25th.

“And when Joseph [Geb] had taken the body [of Jesus] [of Osiris], he wrapped it in a clean linen cloth, And laid it in his own new tomb, which he had hewn out in the rock: and he rolled a great stone to the door of the sepulchre, and departed. And there was Mary Magdalene [Nephthys], and the other Mary [Isis], sitting over against the sepulchre.”

— Anon (c.300AD), Bible (Matthew 27:59-61)

The re-labeled (Ѻ) diagram showing how the Egyptian model of the baby son (Ra-Khepra) is reborn, on Dec 25th, or when the new Osiris corn figure is made, in Dec 23 to Jan 2 of Koiak festival (see: Christmas tree), after which Horus is conceived, being born out of the earth (or earth god Geb), was rewritten via god reduction into the story of the baby Jesus (grandson of Geb) being born in the house of Joseph (god Geb).

“When Osiris the savior comes down to earth as the child Horus to cross it ‘as a substitute’, he exclaims: ‘The gates of earth open to me. Seb [Geb] has opened the bolts, he has opened the chief or lower abode wide. The Osiris comes. He prevails over his heart, he prevails over his hand, he prevails over the meals, he prevails over the waters, he prevails over the streams, he prevails over the pools, he prevails over everything done against him in hades, he prevails over what he has been ordered to do on earth. The Osiris is born like, or as, a ‘word’. He lives. — then it is of the bread of Seb.’

Half the history of the Christ on earth is contained in this passage. He comes to earth as a substitute. He is born as the word. He is the great prevailer over the waters as the worker of miracles. He also prevails over the meals by working three different miracles, and is very possibly born into the house of Seb, represented by god in time or Kronus in person, he is the divine father on earth of the Messiah-son who manifests in time. Thus, Seb is the father of Osiris or Horus on earth. “My father is Seb, my mother is Nu [Nut], I am Horus’, i.e. as son of earth and heaven. When on earth, he is in the dwelling of Seb. He says, ‘My bread on earth (is) that of Seb.’ In the same way, house and food for the Christ are found by Joseph.

Now the iconography of the catacombs continually furnishes a bridge from Egypt to Rome, by which we can pass over independently of the alleged history. In certain sculptures of the ‘first ages of Christianity’, the Christ or Horus is depicted, without a nimbus, and with his feet resting on a scarf that is upheld by a naked female, who is identified by Didron and others as a personification of earth. But, in other sculptures the supporter of the youthful Christ is an aged man with a beard, who undoubtedly represents the earth-god Seb. In each case the head and shoulders only of the figure are shown; and the earth was called the “back of Seb.” Seb's back sometimes opened female-fashion, as the bringer-forth on earth and in time, hence Seb was a mother as well as the father. Seb is the opener of the earth for the solar god. The consort of Seb is the mother heaven, named Nu [Nut]; but Meri is also an Egyptian name for heaven as well as of the genitrix. Thus, Seb and Meri (Nu) [Nut] for earth and heaven would afford two mythic originals for Joseph and Mary as parents of the divine child.”

“In the same hymn above, Osiris's ‘sister’ Isis is described in lunar terms, and Isis and Osiris's child, Horus, is said to have ‘waxed strong in the house of Seb.’ Seb is Osiris's earthly ‘father’; yet, it is clear that Horus — who is not only the son but also the father of Osiris, who is thus the ‘father and son of Horus’ — is likewise a ‘son of Seb’ in the same way that Jesus is the ‘son of David’. Seb is also known as ‘Geb’, and ‘Horus the Elder ... was believed to be the son of Geb and Nut.’ In addition, Seb is ‘lo-sef’, or Joseph; hence, like Jesus, Horus is the ‘son of Joseph’.”