But the prince of the kingdom of Persia withstood me one and twenty days: but, lo, Michael, one of the chief princes, came to help me; for I had remained there with the kings of Persia.
All Commentaries on Daniel 10:13 Go To Daniel 10
Jerome
AD 420
That is, while the angel of the Persians was resisting thy petitions and my representations on thy behalf as I presented thy prayers to God, then there came to my assistance the angel Michael, who has oversight of the people of Israel. By chief princes we are of course to understand archangels.