As a dog that returneth to his vomit, so is a fool that repeateth his folly.
King James Version (KJV) - Proverbs 26:11 >As a dog returneth to his vomit, [so] a fool returneth to his folly.
Berean Study Bible (BSB) - Proverbs 26:11 >As a dog returns to its vomit, so a fool repeats his folly.