'Rulers' in the Bible

When they bring you before the synagogues, the rulers, and the authorities, don't be anxious how or what you will answer, or what you will say;

It happened, when he went into the house of one of the rulers of the Pharisees on a Sabbath to eat bread, that they were watching him.

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

The people stood watching. The rulers with them also scoffed at him, saying, "He saved others. Let him save himself, if this is the Christ of God, his chosen one!"

and how the chief priests and our rulers delivered him up to be condemned to death, and crucified him.