'Ruler' in the Bible

He gives his chosen king magnificent victories; he is faithful to his chosen ruler, to David and his descendants forever."

There is little Benjamin, their ruler, and the princes of Judah in their robes, along with the princes of Zebulun and the princes of Naphtali.

The king authorized his release; the ruler of nations set him free.

and how he made a vow to the Lord, and swore an oath to the powerful ruler of Jacob.

until I find a place for the Lord, a fine dwelling place for the powerful ruler of Jacob."