Like the rest of God's creation, including human beings, angels are created in a hierarchy. This means that not everything and everyone are equal, but there is an order of gifts and authority. God, in His infinite wisdom knows how boring and awful it would be if everything was the same and all creatures were equal. This is especially true with angels and humans. Angels are far superior to human beings in the gifts and strengths that God has endowed them with. But even within the world of angels, there is not equality. God created each one different according to His plan for them. God made human beings the same way.
The hierarchy of angels is constructed of nine different choirs. A choir is kind of a type or rank of angels, grouped together according to the type of work God has created them for. One of these groups, or choirs, is called Archangels. It is the second lowest group of angels that God created. It is from this group that Saint Michael comes.
After God created the angels, He revealed to them His plan to create mankind. He showed them how weak and simple our minds and bodies would be. The angels saw how inferior we humans would be compared to them. God then revealed that He wanted the angels to serve us and help us. He was testing their humility. He showed them that one day He would set a man and woman as King and Queen over all the angels. The man is Jesus, the Second Divine Person of the Most Holy Trinity. The woman is His own Mother, the Blessed Virgin Mary.
Lucifer realized that he had many wonderful gifts. For example, his ability to love was greater than any other angel. His very name means "One who brings light". He had