Set, was not originally the prime evil figure in Egyptian mythology, as that title belongs to Apep, the evil god of darkness. Apep fought against Ra, God of light, and Set was one of the gods who fought against him to protect Ra, giving him a similarity to the figure of Lucifer in Christianity who was an angel who fell from grace and became the Devil. Set becomes the antagonist in the Osiris myth, where he opposes his brother Osiris, who simbolized order, and his nephew Horus. While the Apep-Ra conflict was a depiction of the battle between light and darkness, the Set-Osiris/Horus depicted the battle between order and chaos.
Set was born from the earth god Geb and the sky goddess Nut, along with his twin-sister Nephtys, who also became his wife. Nut and Geb also gave birth to the twins Osiris and Isis, who became the king and queen of Egypt. Set became jealous of his brother, and sought to usurp his throne. He eventualy killed Osiris and dismembered him, spreading his corpse parts around Egypt. Isis, with the help of Nephtys, sougth to collect the parts of his husband's corpse, while Set became king. The two goddesses collect all parts, and with the help of Thoth and Anubis, they ressurrect Osiris for a brief period, enough for Isis to conceive their son, Horus.
Isis hides along with her son, so that she can raise him while protecting him from Set. Horus eventually reaches adulthood, and challenges Set for the throne. Their struggle drags for eight years, but Horus prevails. Set attempts to rape Horus after his defeat but Horus castrates him, while set removes Horus eyes. At this moment Thoth steps in to mediate the conflict, restoring the two and declaring Set's defeat. As the conflict ends, the two deities reconcile, as Horus rules over the fertile regions of Nile while Set is given rule over the desert and the foreign lands. Horus finally reclaims the throne as the rightful king of Egypt, and gives his father Osiris a proper funeral, restoring him in his afterlife, as Osiris becomes ruler of the dead.
After this story came into circulation, the role of Apep was largely morphed into Set.
In the upcoming epic feature film Gods of Egypt, Set will be the main villain and will be played by Gerard Butler.
- Set's counterpart in Nordic mythology would be Loki.
- The Greek mythological figure of Typhon is often likened to Set.
- Set is also similar to Scar
- Both kill their brothers (Osiris and Mufasa) and take their place as King.
- Both battle and are defeated by their nephews (Horus and Simba) who avenge their fathers deaths and become King.