'Elders' in the Bible

(For the Pharisees and all the Jews do not eat unless they wash their hands {ritually}, [thus] holding fast to the traditions of the elders.

And the Pharisees and the scribes asked him, "Why do your disciples not live according to the tradition of the elders, but eat their bread with unclean hands?"

And he began to teach them that it was necessary [for] the Son of Man to suffer many [things] and to be rejected by the elders and the chief priests and the scribes, and to be killed, and after three days to rise.

And they came again to Jerusalem. And [as] he was walking in the temple [courts], the chief priests and the scribes and the elders came up to him

And immediately, [while] he was still speaking, Judas--one of the twelve--arrived, and with him a crowd with swords and clubs, from the chief priests and the scribes and the elders.

And they led Jesus away to the high priest, and all the chief priests and the elders and the scribes came together.

And as soon as morning [came], [after] formulating a plan, the chief priests, with the elders and scribes and the whole Sanhedrin, tied up Jesus, led [him] away, and handed [him] over to Pilate.