The Divine Twins
From Association of Independent Readers and Rootworkers
The Divine Twins are two distinct gods who are brothers worshipped and celebrated in many Neo-Pagan traditions, including Feri, Druidry, and Wicca. The Divine Twins are either seen as rivals or lovers whose relationship and interplay are intimately tied to the seasons and holy days.
Some Neo-Pagans call them the Oak King and the Holly King, others see them as the Light and Dark Gods, but in every instance the interplay of The Twins turns the tides of power from season to season.