'Chief Priests and Elders' in the Bible

And to him, having come into the temple to him teaching, came the chief priests and elders of the people, saying, By what authority doest thou these? and who gave thee this authority?

And having been morning, all the chief priests and elders of the people took counsel against Jesus, to kill him:

And they led Jesus away to the pontificate: and all the chief priests and elders and scribes came with him.

And having been loosed, they came to their own, and announced to them what the chief priests and elders said.

Who having come to the chief priests and elders, said, By an anathema, we anathematized ourselves, to taste of nothing till we kill Paul.