With that the bright-eyed goddess winged away
in an eagle’s form and flight.
Amazement fell on all the Achaeans there.
The old king, astonished by what he’d seen,
grasped Telemachus’ hand and cried out to the prince,
"Dear boy – never fear you’ll be a coward or defenseless,
not if at your young age the gods will guard you so.
Of all who dwell on Olympus, this was none but she,
Zeus’s daughter, the glorious one, his third born,
who prized your gallant father among the Argives."
– Homer
The Odyssey, Book 3, lines 415-424. Athena, disguised as Mentor, reveals herself when she turns into an eagle and flies away. Amazed at what he has seen, King Nestor tells Telemachus that this was none other than Athena who will protect him just as she prized his father Odysseus. So the young son of Odysseus gets the official stamp of approval from the gods.