In Torah there is one place where a false prophet is dealt with--and the way to know is when he says a prophecy and it does not come to pass within the time frame given by that person. So what about Yona at Ninve? the Sages ask. They answer a negative prophecy can be nullified if people repent. So I ask from Jeremiah 18:9 and 18:10 where it says God can make a good decree and then change his mind if people do evil. But that seems to leave the criterion of the Torah with no way to be evaluated.
The only possible answer I can imagine is that there is a Gemara I think in Eruvin that says there were things that were decreed by Moses and nullified by later prophets. In particular that Gemara brings the example of punishment coming on subsequent generations as brought in the Ten Commandments. Later that was nullified by Ezekiel who said children will not die for the sins of their parents. The Gemara there brings a few more examples.
That is not the only place you see something like that. In the last page of tractate Makot you find later prophets nullifying actual commandments as explained there by Rashi. [Rashi over there says that the reason was that these later on prophets saw that if you would require of people to keep all the commandments, then No One would merit to the next world. That he says is the reason most of the requirements were nullified. Look up the Rashi if you can find a gemara.]
The only possible answer I can imagine is that there is a Gemara I think in Eruvin that says there were things that were decreed by Moses and nullified by later prophets. In particular that Gemara brings the example of punishment coming on subsequent generations as brought in the Ten Commandments. Later that was nullified by Ezekiel who said children will not die for the sins of their parents. The Gemara there brings a few more examples.
That is not the only place you see something like that. In the last page of tractate Makot you find later prophets nullifying actual commandments as explained there by Rashi. [Rashi over there says that the reason was that these later on prophets saw that if you would require of people to keep all the commandments, then No One would merit to the next world. That he says is the reason most of the requirements were nullified. Look up the Rashi if you can find a gemara.]
