'Chief Priests and Elders' in the Bible

Now after Jesus entered the temple courts, the chief priests and elders of the people came up to him as he was teaching and said, "By what authority are you doing these things, and who gave you this authority?"

While he was still speaking, Judas, one of the twelve, arrived. With him was a large crowd armed with swords and clubs, sent by the chief priests and elders of the people.