Her gray eyes clear, the goddess Athena answered,
"Down from the skies I come to check your rage
if only you will yield.
The white-armed goddess Hera sped me down:
she loves you both, she cares for you both alike.
Stop this fighting, now. Don’t lay hand to sword.
Lash him with threats of the price that he will face."

– Homer

The Iliad, Book 1, lines 241-246. Achilles considers attacking Agamemnon, but goddess Athena is sent down from heaven by Hera to calm their favored hero. Athena asks Achilles to stay his anger, and demands self control and obedience from him.