John 18:31

Take ye him, and judge him according to your law; I will judge no man before myself first hear and judge of his crime; you have a law amongst yourselves, and a liberty to question and judge men upon it, proceed against him according to your law. They reply, It is not lawful for us to put any man to death. We are assured by such as are exercised in the Jewish writings, that the power of putting any to death was taken away from the Jews forty years before the destruction of Jerusalem. Some say it was not taken away by the Romans, but by their own court. They thought it so horrid a thing to put an Israelite to death, that wickedness of all sorts grew to such a height amongst them, through the impunity, or too light punishment, of criminals, that their courts durst not execute their just authority. And at last their great court determined against the putting any to death; nor (as they say) was any put to death by the Jews, but in some popular tumult, after their court had prejudiced the person by pronouncing him guilty of blasphemy, or some capital crime; which seemeth the case of Stephen, Acts 7:1.