MBY and Chabad

Mashiach ben Yoseph by Rabbi Immanuel Schochet (1935-2013)

Extracts from a Chabad Article

Source:

Sichos in English
Appendix II

By J. Immanuel Schochet
https://www.sie.org/templates/sie/article_cdo/aid/2348440/jewish/Appendix-II.htm#footnoteRef1a2348440
Extracts:
Contents:
1. Who is MBY?
2. MBY and War against Edom
3. Who Was the Ancestor of MBY?
4. End Notes
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1. Who is MBY?
Mashiach ben Yossef (Mashiach the descendant of Joseph) of the Tribe of Ephraim (son of Joseph), is also referred to as Mashiach ben Ephrayim, Mashiach the descendant of Ephraim.2 He will come first, before the final redeemer, and later will serve as his viceroy.3

The essential task of Mashiach ben Yossef is to act as precursor to Mashiach ben David: he will prepare the world for the coming of the final redeemer. Different sources attribute to him different functions, some even charging him with tasks traditionally associated with Mashiach ben David (such as the ingathering of the exiles, the rebuilding of the Bet Hamikdash, and so forth).4
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2. MBY and War against Edom
The principal and final function ascribed to Mashiach ben Yossef is of political and military nature. He shall wage war against the forces of evil that oppress Israel. More specifically, he will do battle against Edom, the descendants of Esau.5 Edom is the comprehensive designation of the enemies of Israel,6 and it will be crushed through the progeny of Joseph. Thus it was prophesied of old, "The House of Jacob will be a fire and the House of Joseph a flame, and the House of Esau for stubble.." (Obadiah 1:18): "the progeny of Esau shall be delivered only into the hands of the progeny of Joseph."7
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3. Who Was the Ancestor of MBY?
Targum Yehonathan on Exodus 40:11 traces his descent to Joshua (cf. below, note 7). Other sources state that he is a descendant of Yeravam ben Nevat, with practical implications in the Providential scheme for this genealogy; see Zohar Chadash, Balak:56b; commentary of R. Abraham Galante on Zohar II:120a (cited in Or Hachamah there); and Emek Hamelech, Sha'ar Olam Hatohu:ch. 46. Cf Devash Lefi, s.v. mem:par. 18. (Note also the sources cited in Sha'arei Zohar on Sukah 52a with regards to other views about his lineage.)
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4. End Notes

3. The harmony and cooperation between Mashiach ben David and Mashiach ben Yossef signifies the total unity of Israel, removing the historical rivalries between the tribes of Judah and Joseph; see Isaiah 11:13 and Rashi there. (Cf. Bereishit Rabba 70:15; and Torah Shelemah on Genesis 29:16, note 49.)

4. See Pirkei Heichalot Rabaty, ch. 39; Sefer Zerubavel; Midrash Agadat Mashiach (most of which is quoted in Lekach Tov, Balak, on Numbers 24:17ff.); and cf. Rashi on Sukah 52b, s.v. charashim. See also Ramban, Commentary on Song 8:13.

5. Note that the final battle of Mashiach ben Yossef is said to be against Armilus, ruler of Edom. See the Messianic Midrashim Zerubavel; Agadat Mashiach; Vayosha etc. (Specific references are offered in R. Margolius, Malachei Elyon, part II, s.v. Armilas; and see also the sources cited below, notes 18-19.) Note that the final battle of Mashiach ben Yossef is said to be against Armilus, ruler of Edom. See the Messianic Midrashim Zerubavel; Agadat Mashiach; Vayosha etc. (Specific references are offered in R. Margolius, Malachei Elyon, part II, s.v. Armilas; and see also the sources cited below, notes 18-19.)

6. Edom is the perpetual enemy of Israel (see Sifre, Beha'alotecha, par. 69, cited by Rashi on Genesis 33:4; and see also Megilah 6a) and its final foe: the present galut is referred to as the galut of Edom (see Bereishit Rabba 44:17; Vayikra Rabba 13:5; and parallel passages) and Edom will be defeated ultimately by Mashiach (Obadiah; Yoma 10a; Midrash Tehilim 6:2; and cf. Tanchuma, Bo:4).

Interestingly enough, according to Pirkei deR. Eliezer ch. 28 (in non-censored versions), the Ishmaelites (Arabs) will be the final kingdom to be defeated by Mashiach. Other sources state "Edom and Ishmael" (see Torah Shelemah on Genesis 15:12, note 130). Note, however, Pirkei deR. Eliezer, ch. 44 (and cf. Midrash Tehilim 2:6and 83:3) that Edom and Ishmael have become intermingled. See also Mayanei Hayeshu'ah, Mayan 11:8.

7. Baba Batra 123b. Targum Yehonathan on Genesis 30:23. Tanchuma, ed. Buber, Vayetze:15; and Bereishit Rabba 73:7; and the parallel passages cited there. See Bereishit Rabba 99:2, that Edom shall fall by the meshu'ach milchamah (the one anointed for battle; see below, note 10 for this term) who will be descended from Joseph.

Mashiach ben Yossef's battle against Edom is analogous to, and the culmination of, Israel's first battle against Edom (Amalek) after the exodus from Egypt (Exodus 17:5ff.). In that first battle, the Jewish army was led by Joshua - who is also of the tribe of Ephraim, and (according to some) this Mashiach's ancestor (see above note 2); see Ramban on Exodus 17:9, and R. Bachaya on Exodus 18:1. Cf. also R. Bachaya on Exodus 1:5, drawing an analogy between the role of Joseph in Egypt and the role of the Mashiach descended from him in the ultimate redemption.