Let the angel of the Lord chase them - By angel we may either understand one of those spirits, whether good or bad, commonly thus denominated, or any thing used by God himself as the instrument of their confusion.
Let them be as chaff before the wind - As chaff is driven away in winnowing grain. See the notes at Psalm 1:4.
And let the angel of the Lord chase them - Drive them away, or scatter them. Angels are often represented in the Scriptures as agents employed by God in bringing punishment on wicked people. See 2 Kings 19:35; Isaiah 37:36; 1 Chronicles 21:12, 1 Chronicles 21:30; 2 Samuel 24:16.