Related su Esodo 23:34

The members of Rabban Gamliel’s house used not to set up a candlestick on the holiday, an incident involving Rabban Gamliel and the elders who were at table; a chandelier fell over on the night of the holiday. R. Akiba stood up and set him up. Then Rabban Gamliel said to him: Akiba, how dare you stick your head in the controversy? Then he said to him: Our master, you have taught us: "to judge according to the majority". hence: Even if you forbid, and they allow, the halakha corresponds to the words of the majority. R. Yehuda says in the name of Rabban Gamliel: One may move a lampstand from one place to another, but one may not erect it.

Why was it said: [The law concerning the giving of the] firstfruits applies only to the existence of the temple? Because it is said: "You shall bring the first of the fruits of your land into the house of YHVH your God". As long as the temple exists, one must give up the firstfruits; if there is no temple, there is no obligation to give the firstfruits.

The second, precepts received on the authority of Revelation which reason neither obligates nor rejects such as the prohibition of milk with meat, shaatnez (garments woven of wool and flax), kilaim (sowing diverse seeds together), and similar precepts whose reason for being prohibited or obligatory is unknown to us.