The name “Michael” in Hebrew means “Who is like God?” The earliest appearance of Michael in the Bible is in Daniel, where he is referred to as “one of the chief princes” (Dan 10:13), “your prince” (Dan 10:21), and “the great prince who stands for the children of your people” (Dan 12:1). In Daniel, Michael is a powerful heavenly being associated with the protection of Daniel’s people in the midst of captivity. He also plays the key role in the final judgment (Dan 12:1, cf. 1 Enoch 54:6) and in delivering Daniel’s people at the end of time (Dan 12:1). In Daniel 10:13 and 21, he assists the “man clothed in linen” to resist “the prince of the kingdom of Persia”, who is presumably Satan. So Daniel portrays Michael as a prominent adversary of Satan in the cosmic conflict.