In the period following the destruction of the temple, the Jewish religious leadership faced a serious problem. Unlike the first Diaspora, which would last for seventy years, according to God’s revelation through Jeremiah, there was now no prophecy with a specific time limit and Jeremiah 31 was ignored! So how do you maintain Judaism while admitting that God is rejecting your sacrificial system, without a temple and without the Messiah?

Source: Judaism in not Jewish – Because the best way to bless Israel is with Jesus