Geb
In the Heliopolitan Ennead (a group of nine gods created in the beginning by the one god Atum or Ra), Geb is the husband of Nut, the sky or visible daytime and nightly firmament, the son of the earlier primordial elements Tefnut (moisture) and Shu ('emptiness'), and the father to the four lesser gods of the system – Osiris, Seth, Isis and Nephthys. In this context, Geb was believed to have originally been engaged with Nut and had to be separated from her by Shu, god of the air. Consequently, in mythological depictions, Geb was shown as a man reclining, sometimes with his phallus still pointed towards Nut. Geb and Nut together formed the permanent boundary between the primeval waters and the newly created world.