29 Do not rejoice, all you Philistines, that the rod that struck you is broken; from the root of that snake will spring up a viper, its fruit will be a darting, venomous serpent.

References for Isaiah 14:29

30 The poorest of the poor will find pasture, and the needy will lie down in safety. But your root I will destroy by famine; it will slay your survivors.
31 Wail, you gate! Howl, you city! Melt away, all you Philistines! A cloud of smoke comes from the north, and there is not a straggler in its ranks.