As to the concept of two messiahs - ben Jospeh, ben David,
apparently this notion was first found in Pirkei D’Rabbi Eliezer 19
and Talmud Sukkah 52b and mentioned for the first time in the
Book of Beliefs and Opinions of R. Saadiah Gaon.
I scanned the material provided at:
torah.org/learning/ruth/class34.html
Since the God of Israel had already offered forgiveness and salvation -
even to those not of Israel - the claim that Jesus died for the sins of humankind
- thus making atonement [at-one-ment] - may well be a moot point.
*Come now, let us set things right, says the LORD: Though your sins be like *
scarlet, they may become white as snow; Though they be crimson red,
they may become white as wool. Isaiah 1:18
This is why the notion of original sin is critical in Christian thought.
No sin - inherited from Adam - no need for a savior from same.
Christianity may well be a solution in search of a problem.
I’m with Reb Zusia. One of the dearest hearts that ever served his Creator.
reen