غَاسِقٍ ... النَّفَّاثَاتِ ... حَاسِدٍ
A darkening agent, those blowing over knots, an envier. (113:3–5)
Ghāsiq and ḥāsid are indefinite, whereas al-naffāthāt is definite with the article. The grammatical contrast is clear; not every proposed rhetorical explanation of it is equally certain. One interpretation sees the indefinites as types and the definite as a recognizable category of harmful action.
First establish the formal distinction, then consider its contextual force with due allowance for interpretive variation.