Let them be as chaff before the wind: and let the angel of the LORD chase them.
Read Chapter 35
George Leo Haydock
Dust. Hebrew mots, small "chaff "Psalm i. 4. (Vatable)
Angel. The evil spirits are employed to punish the wicked, as the good protect the just, Psalm xxxiii. 8. Some Fathers have supposed that every man was attended by a good and a bad angel. (Hermes ii.; Origen xxxv. in Luke; St. Gregory of Nyssa, vit. Mos.; Cassian viii. 17., and xiii. 12.)
But the Church admits the power of the wicked spirits only against those who take part with them, or "as far as God allows them "(St. Jerome) to tempt. The devil is like a dog chained down, which can bite none but those who come within its reach. (St. Augustine)
Both good and bad angels are ministers of God's justice. (Haydock)