'Faithful' in the Bible

How hath a faithful city become a harlot? I have filled it with judgment, Righteousness lodgeth in it -- now murderers.

And I give back thy judges as at the first, And thy counsellors as in the beginning, After this thou art called, 'A city of righteousness -- a faithful city.'

And I cause faithful witnesses to testify to me, Uriah the priest, and Zechariah son of Jeberechiah.

Thus said Jehovah, Redeemer of Israel, His Holy One, To the despised in soul, To the abominated of a nation, To the servant of rulers: 'Kings see, and have risen, princes, and worship, For the sake of Jehovah, who is faithful, The Holy of Israel, and He chooseth thee.'