'Rulers' in the Bible

Behold, one of the rulers of the synagogue, Jairus by name, came; and seeing him, he fell at his feet,

Jesus summoned them, and said to them, "You know that they who are recognized as rulers over the nations lord it over them, and their great ones exercise authority over them.

But watch yourselves, for they will deliver you up to councils. You will be beaten in synagogues. You will stand before rulers and kings for my sake, for a testimony to them.