* The Unexpected Party: While preparing for the journey, Gandalf examines Bilbo's possessions and picks up his sword. He recognizes it as an Elven blade and calls it "Glamdring" (meaning "Foe-hammer"). He explains that it was made by the Elves of Eregion long ago.
* The Goblin Tunnels: As the company travels through the goblin tunnels, Gandalf's sword "Glamdring" glows blue and the goblins' swords glow red, indicating their inherent nature. This phenomenon further confirms Glamdring's Elven origin and its connection to the power of light against darkness.
Bilbo learns the significance of his sword's origins gradually throughout the adventure. Its Elven craftsmanship becomes a testament to its strength and its connection to the ancient world of Elves.