It’s clear to Sam and Frodo that Gollum is treacherous; his allegiance is to the Ring, not to Frodo. Eventually, he’ll try to reclaim it. Still, since the Ring has power over Gollum, so does Frodo—at least for now. Often, in the
Lord of the Rings series, when characters reveal their inner power, it is visible to others as stature and height. Now Frodo joins the ranks of Aragorn and Gandalf: physically unassuming yet powerful figures who wield their power wisely.