"But you – you make your way to the swineherd first,
in charge of your pigs, and true to you as always.
Sleep the night there, send him to town at once
to tell the news to your mother, wise Penelope –
you’ve made it back from Pylos safe and sound."

– Homer

The Odyssey, Book 15, lines 44-48. Athena advises Telemachus that when he arrives in Ithaca he must first visit the swineherd Eumaeus, sending him to town to inform his mother that he has made it home safely from Pylos. The goddess assures him that loyal Eumaeus can be trusted – "as true to you as always."