St. Raphael is one of seven Archangels who stand before the throne of the Lord. He was sent by God to help Tobit, Tobiah and Sarah. At the time, Tobit was blind and Tobiah's betrothed, Sarah, had had seven bridegrooms perish on the night of their weddings. Raphael accompanied Tobiah into Media disguised as a man named Azariah. Raphael helped him through his difficulties and taught him how to safely enter marriage with Sarah. Tobiah said that Raphael caused him to have his wife and that he gave joy to Sarah's parents for driving out the evil spirit in her. He also gave Raphael credit for his father's seeing the light of heaven and for receiving all good things through his intercession. Besides Raphael, Michael and Gabriel are the only Archangels mentioned by name in the bible. Raphael's name means "God heals." This identity came about because of the biblical story which claims that he "healed" the earth when it was defiled by the sins of the fallen angels in the apocryphal book of Enoch. Raphael is also identified as the angel who moved the waters of the healing sheep pool. He is also the patron of the blind, of happy meetings, of nurses, of physicians and of travelers.
The name Gabriel means "man of God," or "God has shown himself mighty." It appears first in the prophesies of Daniel in the Old Testament. The angel announced to Daniel the prophecy of the seventy weeks. His name also occurs in the apocryphal book of Henoch. He was the angel who appeared to Zachariah to announce the birth of St. John the Baptizer. Finally, he announced to Mary that she would bear a Son Who would be conceived of the Holy Spirit, Son of the Most High, and Saviour of the world.
The name Michael signifies "Who is like to God?" and was the warcry of the good angels in the battle fought in heaven against satan and his followers. Holy Scripture describes St. Michael as "one of the chief princes," and leader of the forces of heaven in their triumph over the powers of hell. He has been especially honored and invoked as patron and protector by the Church from the time of the Apostles. Although he is always called "the Archangel," the Greek Fathers and many others place him over all the angels - as Prince of the Seraphim. St. Michael is the patron of grocers, mariners, paratroopers, police and sickness.
text from: www.catholic.org
image from: www.encantra.msn.com