'Witness' in the Bible

and from Jesus Christ, the faithful witness, the firstborn from the dead, and the prince of the kings of the earth. To him who loves us, and has washed us from our sins in his blood,

I know where thou dwellest, where the throne of Satan is; and thou holdest fast my name, and hast not denied my faith, even in the days in which Antipas my faithful witness was, who was slain among you, where Satan dwells.

And to the angel of the assembly in Laodicea write: These things says the Amen, the faithful and true witness, the beginning of the creation of God:

And after these things I saw, and the temple of the tabernacle of witness in the heaven was opened;