Joey jojo
I have found a way to reply via voice-operated computer. I have no way of correcting my typing. I can read, which I have been doing. But sometimes my speech might fail me until the dust settles.
I explained earlier that am being treated for nocturnal epilepsy, and while I can read, due to the medications I just started I cannot type with my hands. It will get worse over the next month to three months or until I am at the full dose range that works for me. My ability is hindered because the dosage is being titrated up daily. I should be fine once this is over however. So this is your last question for now.
The Messiah concept is not central to Judaism like it is to Christianity. It developed post-Biblically, after the first Chanukah and the Hasmonean dynasty took over. According to the Prophets of Scripture, the Davidic line was to regain the throne and not the sons of Judas Maccabeus. From this turn of events in Jewish history the idea developed that the Prophets were speaking of a feature, more idyllic period.
The Hebrew Scriptures themselves, outside of speaking of the sons of David ruling "forever" (which was often metaphorically), never mention an individual called "the Messiah." This term was invented by the Jewish sages of the Second Temple era in discussions on how the oracles of the Prophets might be fulfilled.
There has never been a consensus beyond an agreement in fulfillment. Who or what the Messiah is remains a mystery. Some felt it would be a king. Others a high priest. Some felt there would be two Messiahs, a king and priest. Because of this, the text in Malachi promising the return of Elijah was seen as the answer to this. Upon Elijah's return the Jews would only then indeed learn from him who and what the Messiah is, but not until then.
While several have claimed to be the Messiah over time (we are not responsible for those we rejected like Jesus of Nazareth), there has been only one who came close to having the national recognition necessary for Messiahship: Simon bar Kokhba. He actually revolted and ruled independently from the Romans in 132 C.E. only to be crushed in 135, thus proving he was not the Messiah.
There have been no other national claims (and the claims have to be made by the nation as a whole that we have a new king to count as authentic). Today while many Jews still hope for the arrival of the Messiah, the idea is more abstract. Some do not view the Messiah as a king anymore as it isn't likely anyone will allow a monarchy to have control over them. Others see the concept as a personification of humanity in general, that time where humanity learns to live in peace and harmony with itself.
Regardless, the idea is not central to Judaism nor even necessary. We have no theology of a fall from grace in Eden like Christians and thus no concept of Original Sin passed down from Adam in Judaism. Therefore Jews do not see ourselves as innately sinful and in need of deliverance from sin. This is not a reason for the Messiah in Jewish theology.