I beg to differ. From my own perspective, and others in this thread the answer is a (perhaps not resounding) 'NO'
I think your post merely begs the question.
i.e. If we make every 'type' of knowledge, a 'type' of language, then one can conclude that Knowledge requires language.
I don't think the OP's use of the word 'language' is as broad as you would allow it to be. But then that is perhaps a question for the OP?
FIAT LUX
Yes, but I'm not arguing something circular like that. At least I'm attempting not to.
What I'm saying is that there are logical frameworks that back any sort of operation of our brain. If we consider binary a language with words (a formal language), then the complex interplay of neurons and electric impulses could also be thought to constitute a formal language. In that case any grouping of "words" within that language that are organized to a coherent point can be considered knowledge. Such bits of knowledge are what allows us to walk without thinking, yet our brain is still active in the walking process.
I'm not simply saying that you can simply replace the usage of the word "knowledge" with the word "language."
If we consider mathematics a language, a descriptive language, then it shows us that there are "words" all around us in the form of laws of nature, physics equations derived from nature, and stuff like that. In that sense knowledge does require language.
Again I'm not getting this idea from anyone else, It came to me in a hang over, but it seems like a fresh perspective on the subject.
If people consider music a language, which millions of people do, and people consider math a language, which millions of people do, and people consider computer programming codes languages, then why wouldn't the language that comprises the functioning of our brain or world also be considered languages?
That question is what I am basing my line of reasoning on, I can provide more examples, but is not language simply the interplay between two or more objects? The state of one object informs the next object how to proceed. The results always seem to follow a logical path that can be deconstructed and understood, AKA translated. At it's most basic it's one thing "telling" another thing what to do, whether that's a rock in space bouncing off another rock, or the space of shape itself warping around a massive star, or a person ordering a cup of coffee. How do you draw a line between differing forms of communication?
And I take yours... I typically answer posts with what's going through my mind, and don't try that hard to figure out what the other person meant... fwiw. Mostly cuz a lot of what I read from people in general looks to me like circular thinking that ends up back at the start, until the psyche "pulls itself together" and lather, rinse, repeat continues. As meaningful as it seems/feels, it's false, false, false, IME. It never leads anywhere but back to where it came from, having never taken a single step away.
Peace...
So....you don't try to understand other people when you talk to them? Because why? "It never leads anywhere?" You're the one being circular. Having meaningless discussions because you assume they're meaningless.
Why not we all just go bungee jumping then, surely that would be more fun?
EDIT: I'm serious where can we meet up? I wanna go bungee jumping!