'Heads' in the Bible

And it came to pass, when ye heard the voice from the midst of the darkness, and the mountain burned with fire, that ye came near to me, all the heads of your tribes, and your elders;

And he was king in Jeshurun, When the heads of the people And the tribes of Israel were gathered together.

And he provided the first part for himself, For there was reserved the portion of the lawgiver; And he came with the heads of the people; The justice of Jehovah and his judgments Hath he executed with Israel.