1) What is an archangel?
The word “archangel” (Greek, archangelos) means “high-ranking angel” the same way that “archbishop” means a high-ranking bishop.
Only St. Michael is described as an archangel in Scripture (Jude 9), but it is common to honor St.s Gabriel and Raphael as archangels also.
2) Why are they called “saints” if they’re angels rather than humans?
The word “saint” (Greek, hagios) means “holy one.”
#OTD 29 September: feast of St Michael and All Angels. pic.twitter.com/t2CBiwB0F1
— Caroline Murray (@Prof_hedgehog) September 29, 2021