John Trapp on Isaiah 14:29

Ver. 29. Rejoyce not thou whole Paleſtine] That is, the Philiſtins, quos Judaei animis armiſ que ſibi infeſtiſſimos habuere. Theſe were as bad Neighbours to the Jews as the Dunk[illegible: 1 letter]rkers now are to us. Ʋzziah had ſubdued them, 2 Chron. 26.6. but Ahaz had been much damnified and deſpoiled by them, 2 Chron. 28.18▪ and in the beginning of Hezekiahs Raign, they thought to have over-run all the Countrey. Here therefore Gods decree concerning them is publiſhed, for the comfort of his poor people, and it is this: Philiſtaeis non jubilandum ſed ejulandum. Philiſtins muſt not be over joyed but rather weep and howl for the miſeries that are coming upon them.

Becauſe the Rod of him that ſmote thee is broken] Becauſe Ʋzziah is dead, and Ahaz hath had ill ſucceſs againſt you through his own ſinfulneſs, and ſluggiſhneſs: do not you thereupon take boldneſs to ſet up your creſt, and think all's your own.

For out of the Serpents root] Out of Ʋzziah's iſſue.

Shall come forth a Cockatrice] or Baſilisk, which is ſaid to kill with his looks only: and hereby is meant Hezekiah, as alſo by the fiery flying Serpent: for thus he is called both for his fierceneſs and for his ſwiftneſs, two very commendable properties of a Commander. J. Caeſar was in omnia praeceps, very fierce, and withal notable nimble, witneſs his Veni, Vidi, Vici, I no ſooner came, but overcame. The Hebrews from this text have a Proverb,Deradice colubri egredietur regulus. i e. Afflictiſſimi, inter pauperes praecipui ac primi, atque adeò tolerandis Calamitatibus nati. Quis globu[illegible: 1 letter] ó cives, caligine volvitur [illegible: 1 letter]tra? Hoſtis adeſt. Virg. Out of the Serpents root ſhall come forth a Cockatrice, i. e. One woe is paſt, but behold a worſe at hand.