Jeremiah 13:23 in the King James Version
Can the Ethiopian change his skin, or the leopard his spots? then may ye also do good, that are accustomed to do evil.
Context
22 If you say in your heart, “Why have these things come on me?” Your skirts are uncovered because of the greatness of your iniquity, and your heels suffer violence.
23 Can the Ethiopian change his skin, or the leopard his spots? Then may you also do good, who are accustomed to do evil.
24 “Therefore I will scatter them as the stubble that passes away by the wind of the wilderness.