'Chiefs' in the Bible

And I separated twelve of the chiefs of the priests, Sherebiah, Hashabiah, and ten of their brethren with them,

Watch and keep them until ye weigh them before the chiefs of the priests and the Levites, and the chiefs of the fathers of Israel, at Jerusalem, in the chambers of the house of Jehovah.

Then Ezra arose, and made the chiefs of the priests, of the Levites, and of all Israel, to swear that they would do according to this word. And they swore.