Can the Ethiopian change his skin or the leopard his spots? Then also you can do good who are accustomed to do evil.
The question is blunt on purpose: can a leopard change its spots? Everyone already knows the answer. That's what makes it land — the writer isn't asking you to figure something out, he's asking you to admit something you already know about deeply ingrained patterns, including your own.
Maybe it's a temper, a habit, a way of shutting people out when things get hard. You've tried to will yourself into being different and it hasn't fully taken. That's not a moral failure unique to you — it's what this verse is naming as ordinary human reality.
What's notable is what the verse doesn't say. It doesn't say change is impossible for anyone, ever — it says it's impossible for you to pull off by sheer effort, on your own, accustomed as you are to the patterns you're in. That's a different problem, and it might need a different kind of help than just trying harder.
What's the pattern in you that willpower alone hasn't been able to touch?
A short video on this is coming soon — for now, read on.