Ecclesiastes 10:10-15

¹⁰If the iron be blunt, and be not as before, but be made blunt, with much labour it shall be sharpened: and after industry shall follow wisdom.

¹¹If a serpent bite in silence, he is nothing better that backbiteth secretly.

¹²The words of the mouth of a wise man are grace: but the lips of a fool shall throw him down headlong.

¹³The beginning of his words is folly, and the end of his talk is a mischievous error.

¹⁴A fool multiplieth words. A man cannot tell what hath been before him: and what shall be after him, who can tell him?

¹⁵The labour of fools shall afflict them that know not bow to go to the city.