moggy lover....According to John Collins, 'md in post-exilic Hebrew has a sense of "come on the scene" and points to such texts as the Damascus Document: "...until a Messiah shall arise ('d 'mwd mshych) from Aaron and another from Israel" (CD 20:1). This is the sense that occurs through much of ch. 11 to highlight the transitions between one king to the next. Because Michael arises in 12:1 immediately after the death of Antiochus Epiphanes is related at the end of ch. 11, this sense may be relevant to this verse (as is the description of Michael as h-shr h-gdwl "the great prince"). But the same verb occurs again in 12:1b and clearly has the sense there of "protect" (i.e. "who stands by those who belong to your people") and reflects the role of Michael in intertestamental literature as an angelic advocate and guardian of Israel (a role formerly filled by Yahweh). Compare also:
"And now fear the Lord, my children, be on guard against Satan and his spirits. Draw near to God and to the angel who intercedes for you, because he is the mediator between God and men for the peace of Israel. He shall stand in opposition to the kingdom of the enemy. Therefore the enemy is eager to trip up all who call on the Lord, because he knows that on the day in which Israel trusts, the enemy's kingdom will be brought to an end. This angel of peace will strengthen Israel so that it will not succumb to an evil destiny" (Testament of Dan 6:1-5).
See also Testament of Levi 5:5-6. An offensive "standing" is also the sense of 'md in Daniel 8:25, 11:14 (with the same preposition 'l, here "against"). The most attractive interpretation of 'md in 12:1a is that provided by Collins and Nickelsburg which sees Michael as standing in judgment, as indicated by the context of the verse (i.e. the heavenly books being opened, the resurrection, etc.), the similar judicial scene in ch. 7, and the very similar characterization of Michael/Melchizedek in Qumran literature. The major study for this is G. W. Nickelsburg's "Resurrection, Immortality, and Eternal Life in Intertestamental Judaism" published in Harvard Theological Studies in 1972.
I do believe there are some scholars who identify Michael with a Messianic figure of Judaism, but identifying Michael with Jesus Christ specifically appears to be relatively recent [Late 19th Cent with the rise of SDAism
Right, and none of the scholars I mentioned identify Michael with Jesus Christ per se; they identify him with the "one like a son of man" in Daniel 7. And this connection has been noticed by exegetes for a very long time, at least as early as Ibn Ezra. Since the Son of Man figure in ch. 7 was identified with Jesus Christ from the first century onward, it is easy to see how this connection can be pressed into service to identify Jesus Christ with Michael (even if they are otherwise distinguished from each other in early Christian literature). It is simply within the context of Daniel itself (which knows nothing of Jesus or later interpretations of the book) that Michael has a lot in common with the Son of Man figure. This is discussed in detail in John Collins' Hermeneia commentary and most adeptly in John Day's God's Conflict with the Dragon and the Sea: Echoes of a Canaanite Myth in the Old Testament (Cambridge: Cambridge University Press, 1985).
Evidently the Jews were influenced by this concept when in captivity to Babylon, although Zoroastrianism was the religion of Persia.
To a great extent, most definitely. But as John Day demonstrates, there is a lot in the language of Daniel that derives from native Canaanite and Israelite traditions and both Michael and the "one like a son of man" occupy the role formerly held by Yahweh (as judge-executioner-national patron) in Israelite religion and by Baal in earlier henotheism. Day even points to a latent role of Michael in Judaism as a bringer of rain and snow (just like Baal and Yahweh), and of course the descriptive language in ch. 7 of the "one like a son of man" borrows from classic Baal/Yahweh epithets.