the future all sacrifices, with the exception of the Thanksgiving-sacrifice, will be discontinued." (Midrash Vayikra Rabbah 9:7) "All sacrifices will be annulled in the future." (Tanchuma Emor 14, Vayikra Rabbah 9:7) "Then the grain-offering of Judah and Jerusalem will be pleasing to God as in the days of old, and as in ancient years." (Malachi 3:4) "It is impossible to go suddenly from one extreme to the other;[...] the custom which was in those days general among all men, and the general mode of worship in which the Israelites were brought up consisted of sacrificing animals in the temples... For this reason God allowed this kind of service to continue. The sacrificial system is not the primary object, rather supplications, and prayer." (Maimonides, The Guide to the Perplexed III 32) The majority view of classical rabbis is that the Torah's commandments will still be applicable and in force during the messianic era. However, a significant minority of rabbis held that most of the commandments would be nullified in the messianic age, thus keeping that sacrifices will not be reinstated. Examples of such rabbinic views include: Babylonian Talmud, Tractate Niddah 61b and Tractate Shabbat 151b. Midrash Shochar Tov (Mizmor 146:5) states that God will permit what is now forbidden. Orthodox Judaism holds that in the messianic era, most or all of the korbanot will be reinstituted, at least for a time. Conservative Judaism and Reform Judaism, hold that no animal sacrifices will be offered in a rebuilt Temple at all, following the position of Tanchuma Emor 14 and Vayikra Rabbah 9:7. 19th and 20th century In the 1800s a number of Orthodox rabbis studied the idea of reinstating on the Temple Mount, even though the messianic era had not yet arrived and the Temple was not rebuilt. A number of responsa concluded that within certain parameters, it is permissible according to Jewish law to offer such sacrifices. During the early 20th century, Israel Meir Kagan advised some followers to set up special yeshivas for married students known as that would specialize in the study of the korbanot and study with greater intensity the sections of the Talmud in order to prepare for the arrival of the Jewish Messiah who would oversee the rebuilding of the original Temple of Solomon in Jerusalem that would be known as the Third Temple. His advice was taken seriously and today there are a number of