'Faithful' in the Bible

"How the faithful city has become a whore, she who used to be filled with justice! Righteousness used to reside within her, but now only murderers live there.

Let me restore your judges as at the first, and your counselors as at the beginning. Afterward you'll be called "The Righteous City' and "The Faithful City of Zion'.

"This is what my Lord says the LORD your Redeemer, O Israel, and his Holy One to one despised by people, to those abhorred as a nation, to the servant of rulers: "Kings see and arise, and princes will bow down, because of the LORD who is faithful, the Holy One of Israel, the one who has chosen you."

Pay attention to me, come to me; and listen, so that you may live; then I'll make an everlasting covenant with you, as promised by my faithful, sure love for David.