Many Protestant scholars have identified Jesus Christ with Michael the Archangel, without seeing any contradiction between this affirmation and the doctrine of the Trinity, among them, Calvin, [John Calvin, Commentary on the Book of the Prophet Daniel, Lecture Sixty-Five.] Wesley, [John Wesley, Explanatory Notes, On Daniel 12:1.] Spurgeon, [Charles Spurgeon, Sermon: The Angelic Life, Nov. 22, 1868.] and Lange. [John Peter Lange, Lange's Commentary (1874), on Rev. 12:1-12.] The commentary of the popular Geneva Bible (1599) as well commented that many statements given in the book of Daniel are possible indicators of identity between Michael and Jesus Christ. Interestingly the first century Jewish author Philo taught that the divine Word was an “archangel,”
"And even if there be not as yet any one worthy to be called a son of God, nevertheless let him labor earnestly to be adorned according to his first-born Word, the eldest of his angels, and the great archangel of many names, for he is called, the authority, and the name of God, and the Word, and man according to God's image and he who sees Israel." (De confusione linguarum 1:145)
The title “archangel” (ἀρχαγγέλος) means “chief angel” or “chief of the angels,” and is associated only with Michael, and Jesus Christ. Michael is explicitly called “the archangel,” (Jude 1:9) and in the absence of any scriptural references to “archangels” in the plural, the use of the definite article, “the archangel”, suggests that Michael is the only archangel. In the Deuterocanon and the DSS there are multiple archangels. There is no reason to assume Paul thought there was only one archangel. The prophet Daniel also closely associates the actions of Michael with resurrection,
“Now at that time Michael, the great prince who stands guard over the sons of your people, will arise. And there will be a time of distress such as never occurred since there was a nation until that time; and at that time your people, everyone who is found written in the book, will be rescued. Many of those who sleep in the dust of the ground will awake, these to everlasting life, but the others to disgrace and everlasting contempt.” (Dan. 12:1-2)
Here the archangel is associated with resurrection and judgment. He is also described as the “great prince” who guards the people of God. This passage from Daniel greatly impressed Calvin, who wrote in his lectures,
“As we stated yesterday, Michael may mean an angel; but I embrace the opinion of those who refer this to the person of Christ, because it suits the subject best to represent him as standing forward for the defense of his elect people.” [John Calvin, Commentary on Daniel, Vol. II. (1561), Chapter 12, Lecture 65.]
Michael the archangel is named mentioned first in Daniel 10:13 which describes him as “one of the chief princes.” Later in Dan. 10:20 a demon is called as “the prince of Persia,” and another demon is called “the prince of Greece.” This is the most powerful evidence for the authenticity of Deut. 32:8 as it is recorded in the LXX, “When the Most High divided the nations, when he separated the sons of Adam, he set the bounds of the nations according to the number of the angels of God.” Likewise, the DSS reads that God “set the bounds of the nations according to the number of the gods.” According to this passage, after the event at Babel described in Gen. 11:7 the nations of mankind were each given an angelic overseer, and each of these “princes” evidently rebelled with the exception of Michael, who is said to the Prince of Israel. (Dan. 10:21; 12:1) There are also texts in the New Testament which clearly give Christ the title “angel,” Gieschen wrote the following,
“Although “angel” is not a significant title of Christ in the NT, neither is it without some overt use; see Gal. 4.14; Rev 10.1; 14.14-15; 20.1. … Galatians 4.14 is the one place in the Pauline corpus where there is an overt reference to Jesus as God’s Angel. There Paul makes the curious claim that the Christians he had visited and now is writing to had welcomed him “as God’s Angel, as Christ Jesus.” [Charles Gieschen, Angelomorphic Christology: Antecedents & Early Evidence (Netherlands: Koninklyke Brill, 1998), pp. 4, 315.]
The Father often uses righteous spirit creatures to interact with his people. The same is true for the Hebrew equivalent, מַלְאַ֧ךְ is used throughout the Hebrew Bible with the same significance, for this reason Hilary wrote, “The title of Angel informs us of His office, not of His nature. I have prophetic evidence for this explanation; Who makes His angels spirits, and His ministers a flaming fire." [Hilary, On the Trinity, V. §11.] These serving spirits are often called “angels” in scripture, the English word “angel” is derived from the Greek ἀγγέλος and means “messenger, envoy, one sent.” [Timothy Friberg, Barbara Friberg, Neva F. Mille, Analytical Lexicon of the Greek New Testament (Canada: Trafford Publishing, 2005), pp. 31.]