'Ruler' in the Bible

and he who is doing injustice to the neighbour, did thrust him away, saying, Who set thee a ruler and a judge over us?

'This Moses, whom they did refuse, saying, Who did set thee a ruler and a judge? this one God a ruler and a redeemer did send, in the hand of a messenger who appeared to him in the bush;

and Crispus, the ruler of the synagogue did believe in the Lord with all his house, and many of the Corinthians hearing were believing, and they were being baptized.

and Paul said, 'I did not know, brethren, that he is chief priest: for it hath been written, Of the ruler of thy people thou shalt not speak evil;'