In terms of fiction Tolkein famously made one of Saruman's strongest things his use of his voice. This video goes over that well. Also "the voice" in Dune is a similar kind of magical spell explicitly which controls others. And the "Jedi mind trick" as well. Language control is also the central way that 1984 gets it point across.

Asha Logos explained it well as Language is the battlefield in one of his first videos. Language frames the bounds of people listening to it and who engage with it, and it can be very difficult to think outside of those invisible walls when you operate within certain ones your whole lives.