John Trapp on Proverbs 25:18

Verſ. 18. Is a Maul, and a Sword, and a ſharp Arrow] A Maul, Hammer, or Club to knock out his brains, and make them fly about the room, as the Hebrew word imports. A Sword, or Murthering weapon, Pſal. 42.10. and 57.5. to run him thorow and let out his bowels. And a ſharp Arrow, to pierce his fleſh, and ſtrike thorow his very heart. Loe here the miſchief of an evil tongue, thin, broad, and long, like a Sword to let out the Life-bloud of the poor innocent; nay, to deſtroy his ſoul too, as ſeducers doe, that bear falſe witneſſe againſt the truth of God, and by their cunning lyes, deceive the hearts of the ſimple.