Our Ancient Egypt

 The god Nun is mostly associated with the forces of chaos

Nun who suggested that Re should send out his 'eye' to destroy mankind and end the world. However, unlike the water serpent Apep (who was the enemy of Ra and a purely destructive force) Nun had a positive aspect. Nun protected Shu and Tefnut from the forces of chaos, as represented by demonic snakes. According to one myth it was Nun who told Nut to transform herself into a solar cow and carry Ra across the sky because he had become old and weary.

Depiction

Nun was depicted as a frog or a frog-headed man; but could also be depicted as a bearded man with blue or green body (reflecting his link with the river Nile and fertility)
Occasionally he appears as a hermaphrodite with pronounced breasts.). In the latter form he can look fairly similar to Hapi, the god of the Nile, and often appears either standing on a solar boat or rising from the waters holding a palm frond (a symbol of long life).

Following the creation, Nun played a role in the destruction of mankind when humans no longer respected and obeyed Re in his old age.