'Leaders' in the Bible

“And now, brothers, I know that you did it in ignorance, just as your leaders also did.

After the reading of the Law and the Prophets, the leaders of the synagogue sent word to them, saying, “Brothers, if you have any message of encouragement for the people, you can speak.”

Then the chief priests and the leaders of the Jews presented their case against Paul to him; and they appealed,

After three days he called together the leaders of the Jews. When they had gathered he said to them: “Brothers, although I have done nothing against our people or the customs of our ancestors, I was delivered as a prisoner from Jerusalem into the hands of the Romans.