'Faithful' in the Bible

I then put in charge over Jerusalem my brother Hanani and Hananiah the chief of the citadel, for he was a faithful man and feared God more than many do.

When you perceived that his heart was faithful toward you, you established a covenant with him to give his descendants the land of the Canaanites, the Hittites, the Amorites, the Perizzites, the Jebusites, and the Girgashites. You have fulfilled your promise, for you are righteous.