'Ruler' in the Bible

When a man shall take hold of his brother of the house of his father, saying, Thou hast clothing, be thou our ruler, and let this ruin be under thy hand:

In that day shall he swear, saying, I will not be an healer; for in my house is neither bread nor clothing: make me not a ruler of the people.

Send ye the lamb to the ruler of the land from Sela to the wilderness, unto the mount of the daughter of Zion.