Revelation 1:9
I, John, who am also your brother and companion in tribulation, and in the kingdom and patience of Jesus Christ, was in the island called Patmos, for the sake of the word of God, and for the testimony of Jesus Christ.
Revelation 6:9
And when he opened the fifth sea, I saw, under the altar, the souls of those who were slaughtered on account of the word of God, and the testimony which they held.
Revelation 20:4
And I saw thrones, and they sat upon them, and judgment was given to them-even the souls of them who had been beheaded for the testimony of Jesus, and for the word of God, and who had not worshiped the beast, nor his image, and had not received his mark on their foreheads, and upon their hands; and they lived, and reigned with Christ a thousand years: