The one speaking here is Wisdom herself, and she's defending herself against a silent accusation. In the verses before, she insists: "what I say is worthy," "all the words of my mouth are just," "nothing I say is twisted or crooked." In other words, she's saying she doesn't speak in riddles.
And then comes verse 9, which sounds like a circular sentence and isn't: to the discerning, all of them are right. Read fast, it sounds like saying whoever understands, understands. Read slowly, it's a polite accusation: if you're confused, maybe the problem isn't the message.
Reflection
1Wisdom Doesn't Speak in Riddles
There's a huge difference between something being difficult and something being obscure. Difficult is what requires effort to learn. Obscure is what was written so it wouldn't be understood.
Wisdom puts herself in the first group. She isn't a puzzle that needs a decoder, she's straightforward advice that needs someone willing. That's why verse 10 keeps the practical tone, telling us to "accept my instruction instead of silver," not telling us to memorize mysteries.
Run the capacity test. The same person who swears they didn't understand what the doctor explained understands the league standings, the credit card fine print, and the airline miles program perfectly. The same person who didn't understand what was agreed in the marriage understands the employment contract line by line. The problem is almost never the capacity to understand, it's selectivity.
2Not All Confusion Is Doubt
Here we need to be careful, so the verse doesn't become a weapon. There's sincere doubt, there's honest questioning, and there's plenty of confusion caused by someone who taught badly. Not every confused person is running away, and calling someone's legitimate doubt ill will is cruelty disguised as spirituality.
With that caveat made, there's a kind of confusion that's too convenient to be innocent. It's the confusion that only shows up in the parts that would cost something.
Notice the pattern. The instruction was clear right up until the part that demanded a change of habit. The advice made sense right up until the line that touched the money. The sermon was great right up until it touched that subject, and then, suddenly, it got complicated, it needs context, there are other interpretations. The honest test is simple: are you confused about everything, or only about what would cost you something?
3The Will Comes Before the Understanding
Jesus said a sentence that flips the order we naturally assume: “Anyone who chooses to do the will of God will find out whether my teaching comes from God or whether I speak on my own.”
Read it again, because the order is flipped on purpose. We grew up thinking you first understand and then you obey. Jesus says you first want to, and then you understand. Willingness comes before comprehension, not after it.
This isn't blind faith or an invitation to switch off your brain. It's a description of how certain truths work. Nobody learns to swim by studying the physics of buoyancy on the edge of the pool, and nobody discovers that the water holds you up while keeping one foot on the bottom. There are things you can only verify from the inside, and getting in costs a decision.