orcs and goblins- what's the difference???

[Morsul the Dark]

hey I found something Im surprised no one brought up i found this on another site

OK, I'm not sure exactly how to explain this so I'll just go with the flow. I have two points. The first is that whether they are goblins or Orcs Sting should be glowing anyway. In the Hobbit when Bilbo first gets Sting, Bilbo and his companions are attacked by Goblins in the Misty Mountains and Sting (and the other elven blades) glow when the goblins are about, Orcs are not mentioned in the Hobbit. .

this is referring to a blooper in the film but the book reference was useful for here