I know many Messianic Jews from various persuasions. They are as varied as the many on this thread who profess the name of Christ.
Some that I know well, have come to a knowledge of their Messiah at great cost, much more than some of us Gentiles. There families have disowned them and they've been ostracized from their familiar culture. In the early years of the church after it had become predominately gentile, Jews were required to renounce their Judaism. This practice continued and became even uglier at times. It was never meant to be so. The first believers on the day of Pentecost(a Jewish feast-Shavuot) were 3000 Jews and not a gentile among them, except some proselytes. The next day another 5000 Jews were saved. It wasn't til' Acts10, maybe ten years later that the first gentiles were saved. As more and more gentiles were brought in, the question arose as to how far into Jewish practice the gentiles were required to go. The conclusion in Acts 15 was not to far, but only to refrain from those things that were immoral and that offended the Jewish conscience. Gentiles were not to become proselyte Jews. I think it is very wrong to insist that Jews become proselyte Gentiles, when they come to Israel's Messiah. After all, "this same [Jewish] Jesus will return in the same way He left(Acts 1:11).
I do maintain that neither Jew nor Gentile is 'under the law' at this time and those who believe it are in error. However, there is no harm in studying the feasts of Israel and other practices in order to gain insight into the types that pointed to Messiah.
Of course, to those who believe that GOD is completely finished with Israel, the people and the land, then these things can look quite rediculous. But, that goes back to the 'many splintered things' that we find in Christianity anyway, right?
