Second, you are simply wrong about humans not being called angels in the Bible -- the Greek word ἄγγελος is simply the word for messenger, and is applied to John the Baptist in Mark's and Matthew's Gospels, in Luke's Gospel to the men John the Baptist sent to inquire of Jesus whether he were the Christ, in the Universal Epistle of James to the Israelite spies whom Rahab aided, and, despite protestants objecting to this out of historical ignorance, to the bishops of the Churches of Asia Minor to whom St. John the Theologian addressed his Apocalypse.
The custom of referring to the bishop of a church as the "angel" of the church is very ancient, but is preserved to this day in the title of "The Angel of Haran" applied to the Orthodox bishop of the Diocese of Bosra-Haran in Syria.
That was a very informative post, and I just wanted to thank you for it. I had no idea about the “Angel of Haran.” Thanks again, it definitely does shed some light on the subject being discussed.