The Bible speaks of two types of angels: holy and unholy angels.
1-Gabriel is one of the main messengers of God, his name meaning “hero of God,” and was sent with important messages such as those delivered to Daniel (Daniel 8:16; 9:21), to Zacharias (Luke 1:18-19), and to Mary (Luke 1:26-38). The angelic visitor declared of himself, “I am Gabriel, that stand in the presence of God” (Luke 1:19). Gabriel occupies the position from which Satan fell.
2-Cherubim are living creatures who defend God’s holiness (Genesis 3:24; Exodus 25: 18, 20; Ezekiel 1:1-18). The Bible represents cherubim as belonging to the class of beings that are close to God and His throne (Eze. 9:3; 10:4; Ps. 99:1). For this reason cherubic figures were to be upon the ark and the curtains of the tabernacle (Ex. 25:18; 26:1, 31), and were afterward engraved upon the walls and doors of the Temple (1 Kings 6:29, 32, 35).
3-Seraphim, literally means, “burning [ones],” or “shining [ones].” Seraphim are another class of angels mentioned only once in Scripture in Isaiah 6:2-7 and are described as having three pairs of wings. Isaiah sees the angels with two wings covering the face, in an attitude of homage and reverence before God, two wings covering the feet, and two used for flight.
The living creatures seen by Ezekiel, however, are represented as having four wings (Eze. 1:6). Ezekiel sees the living creatures with two wings covering the body and two wings stretched upward (Eze. 1:11). These angelic beings are constantly praising God, being God’s messengers to Earth, and are especially concerned with the holiness of God.
When Satan fell (John 8:44; Luke 10:18), he drew after him one third of the angels. Fallen angels have been divided into two groups: those that are free (Mark 5:9, 15; Luke 8:30) and those who are bound in chains waiting the judgment of God (2 Peter 2:4; Jude 6). God will judge all fallen angels and destroy them (Matthew 25:41; Revelation 20:10).
In His service,