[betterunix2]

"It seems that it has evolved as a reaction against Christianity"

Citation needed.

Pretty much all secular scholarship I have ever seen on this topic has concluded that both rabbinic Judaism and early Christianity were reactions to the destruction of the second temple. Rabbinic Judaism is the direct intellectual and religious descendant of the pharisee sect, and has always stood on its own merits. The only rabbinic tradition that definitively developed in response to the rise of Christianity is the birkat haminim, a prayer that was used to "out" secret Jewish Christians before the final split between the religions. Beyond that, all there is are attempts to deal with / respond to persecution of Jews and Jewish institutions by Christians in later centuries (e.g. the fixing of the Jewish calendar after Christian Rome disbanded the Sanhedrin).

Don't overstate the importance of Christianity to the early rabbis. Rabbinic literature is generally dismissive of non-Jewish religions and Jewish Christians like the Ebionites were seen as heretics -- a term the rabbis used for non-rabbinic Jewish movements of the Roman era (of which there were many, none of which have survived).

As for the Gospel, it does not really matter what people thought hand washing was for -- ritual washing hands did improve their hygiene, just like ritual bathing. Jesus told his followers not to bother, and it does not matter whether or not he understood the hygiene implications, because not washing their hands was still detrimental to hygiene.

[alehander42]

He wasn't talking about the hygiene of washing hands. He is God, he understood. He was making an obvious point about human traditions a which the Gospels even clarify with context.

The Scripture is full of similar scenes. Peter sees a vision with a sheet with unclean animals ready for eating. The focus was on evangelizing the people who eat those foods tho: the gentiles.

The destruction of the Second Temple was prophesied by Christ, and apostles started serving in the Church only 50 days after His resurrection, on Pentecost. So yes, rabbinical judaism has been a reaction to the destruction of the second temple, but the Church was already active and persecuted in the center of the roman empire, many epistles were already written and there were churches through greece and rome