which egyptian god was bitten by a snake
Horus.
Osiris myth
In this stage of the myth, Horus is a vulnerable child beset by dangers. The magical texts that use Horus's childhood as the basis for their healing spells give him different ailments, from scorpion stings to simple stomachaches, adapting the tradition to fit the malady that each spell was intended to treat. Most commonly, the child god has been bitten by a snake, reflecting the Egyptians' fear of snakebite and the resulting poison. Some texts indicate that these hostile creatures are agents of Set. Isis may use her own magical powers to save her child, or she may plead with or threaten deities such as Ra or Geb, so they will cure him. As she is the archetypal mourner in the first portion of the story, so during Horus's childhood she is the ideal devoted mother. Through the magical healing texts, her efforts to heal her son are extended to cure any patient.
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Osiris myth [SEP] Birth and childhood of Horus
In Egyptian accounts, the pregnant Isis hides from Set, to whom the unborn child is a threat, in a thicket of papyrus in the Nile Delta. This place is called "Akh-bity", meaning "papyrus thicket of the king of Lower Egypt" in Egyptian. Greek writers call this place "Khemmis" and indicate that it is near the city of Buto, but in the myth, the physical location is less important than its nature as an iconic place of seclusion and safety. The thicket's special status is indicated by its frequent depiction in Egyptian art; for most events in Egyptian mythology, the backdrop is minimally described or illustrated.