'Faithful' in the Bible

I gave command over Jerusalem to my brother Hanani and Hananiah the commander of the citadel. For he was a faithful man and feared God more than many.

You found his heart faithful before you and made a covenant with him to give the land of the Canaanite, the Hittite, the Amorite, the Perizzite, the Jebusite and the Girgashite--to give [it] to his seed. And you have kept your word because you are righteous.

I appointed as treasurer over the storehouses Shelemiah the priest, Zadok the scribe, Pedaiah from the Levites, and as their hand Hanan son of Zaccur, son of Mattaniah, for they were considered faithful. [The responsibility given] to them was to distribute to their brothers.