According to Wikipedia
The Romans drew on Etruscan traditions for the interpretation of these signs. A tile found at Urbs Salvia in Picenum depicts an unusual composite Jove, "fairly bristling with weapons": a lightning bolt, a bident, and a trident, uniting the realms of sky, earth, and sea, and representing the three degrees of ominous lightning ...
Achilles tells Agamemnon's ambassadors—Odysseus, Telamonian Ajax, and his own old tutor Phoenix—of a prophecy:
For my mother Thetis the goddess of the silver feet tells me I
carry two sorts of destiny toward the day of my death. Either, if
I stay here and fight beside the city of the Trojans, my return
home is gone, but my glory shall be everlasting; but if ...