Mishle 26:9-11

Orthodox Jewish Bible

⁹ As a thornbush goeth up into the yad of a shikkor, so is a mashal in the peh (mouth) of kesilim.

¹⁰ Like an archer wounding all, so is he that hireth the kesil (fool), or hireth the passerby.

¹¹ As a kelev returneth to his vomit, so a kesil (fool) returneth to his folly.