'Faithful Witness' in the Bible

As the moon it shall be prepared forever, and a faithful witness in the cloud. Silence.

I will take to witness to me faithful witnesses, Uriah the priest, and Zechariah son of Jeberechiah.

And from Jesus Christ, the faithful witness, the first born from the dead, and the chief of the kings of the earth. To him having loved us, and washed us from our sins in his blood,

I know thy works, and where thou dwellest, where the throne of Satan: and thou holdest my name, and hast not denied my faith, and in the days in which Antipas my faithful witness, who was slain with you, where Satan dwells.