- speech (hears/listen, 13:1; mouth, vv. 2–3; lips, v. 3; falsehood,v. 5)
- and eating/desire (eats, v. 2; desire, v. 2; craves and richly supplied, v. 4)
in order to assure those who seek to guard their mouth (v. 3) through righteousness (v. 6) that such a path has mutually reinforcing benefits in both heart and actions. The purpose of the section is integrated further by the repeated Hebrew nepesh, translated as “desire” (v. 2), life (v. 3), and soul (twice in v. 4): guarding the mouth protects the heart from being further confirmed in violence (v. 2; see 10:11) or sin (13:6), which overthrows (v. 6) a person and leads to ruin (v. 3).