'Chief Priests and Elders' in the Bible

While he was still speaking, look, Judas, one of the twelve, came, and with him a great crowd with swords and clubs, from the chief priests and elders of the people.

Then Judas, who betrayed him, when he saw that Jesus was condemned, felt remorse, and returned the thirty pieces of silver to the chief priests and elders,

When he was accused by the chief priests and elders, he answered nothing.