Athene mentions the potential destructive anger of Zeus (mênis) in her proposal that she and the war god defer to him and withdraw. Sensible as this is in light of Zeus’ later threats to punish any intervention by the gods (8.5–27), it also at this point conveniently allows Diomedes, one of Athene’s favorites, to rage in battle, unchecked by opposing divinities.
Lattimore commentary