'Faithful' in the Bible

that I gave my brother Hanani, and Hananiah the governor of the castle, charge over Jerusalem; for he was a faithful man, and feared God above many.

and foundest his heart faithful before thee, and madest a covenant with him to give the land of the Canaanite, the Hittite, the Amorite, and the Perizzite, and the Jebusite, and the Girgashite, to give it unto his seed, and hast performed thy words; for thou art righteous.

And I made treasurers over the treasuries, Shelemiah the priest, and Zadok the scribe, and of the Levites, Pedaiah: and next to them was Hanan the son of Zaccur, the son of Mattaniah; for they were counted faithful, and their business was to distribute unto their brethren.