'Windblown' 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.

Do you wish to torment a windblown leaf and chase after dry chaff?

I grind them as fine windblown dust; I beat them underfoot like clay in the streets.

Who has aroused victory from the east, and has summoned it to his service, and has handed over nations to him? Who brings down kings, and turns them into dust with his sword, into windblown stubble with his bow?

before God's decree becomes reality and the day of opportunity disappears like windblown chaff, before the Lord's raging anger overtakes you -- before the day of the Lord's angry judgment overtakes you!