17Incline your ear and hear the words of the wise,
            And apply your mind to my knowledge;
      18For it will be pleasant if you keep them within you,
            That they may be ready on your lips.
      19So that your trust may be in the LORD,
            I have taught you today, even you.
      20Have I not written to you excellent things
            Of counsels and knowledge,
      21To make you know the certainty of the words of truth
            That you may correctly answer him who sent you?