'Pursuer' in the Bible

As for the ones who remain among you, I will bring fearfulness in their hearts in the land of their enemies; and a sound of a windblown leaf shall pursue them, and they shall flee [like] flight {before} a sword, and they shall fall, but there shall not be a pursuer.

And they shall stumble over {one another} as {from before} a sword, but there shall not be a pursuer; and {you shall have no resistance} {before} your enemies.

All her majesty has gone away from the daughter of Zion; her princes have become like young stags that have not found pasture; they have gone away without strength, before the pursuer.