'Rulers' in the Bible

He has put down rulers from thrones, and exalted the lowly.

But when they bring you before the synagogues and rulers and the authorities, be not careful how or what ye shall answer, or what ye shall say;

And it came to pass, as he went into the house of one of the rulers, who was of the Pharisees, to eat bread on the sabbath, that they were watching him.

And Pilate, having called together the chief priests and the rulers and the people,

And the people stood beholding, and the rulers also with them sneered, saying, He has saved others; let him save himself if this is the Christ, the chosen one of God.

and how the chief priests and our rulers delivered him up to the judgment of death and crucified him.