I think we're interpreting that in different ways. I'm assuming you read it as something like "words can't be used to communicate (knowledge)", which you're seeking to disprove by showing me that I only gained that knowledge through Wittgenstein's words. Please correct me if I'm wrong.

That's not what I meant though. I meant that words are like signs; they point at the real thing. We must be careful not to confuse the sign for the thing itself. We can't simply rearrange words and assume that what this new sign, this new combination of words points to, is "real". Not all words or sentences point to anything, or anything meaningful. And the trap we sometimes fall into (as philosophers especially?) is assuming that they always mean something.

Edit: First the thing exists, then we use a word to refer to it. The mistake is reversing that, by thinking that by creating new words or combinations of words, we can bring something into existence.