Proverbs 26:9-11

Evangelical Heritage Version

⁹ A proverb in the mouth of a fool
    is like a thorn in a drunkard’s hand.
¹⁰ One who hires a fool or someone just passing by
    is like an archer who wounds at random.^[a]
11 As a dog returns to his vomit,
so a fool repeats his stupidity.