I saw that the woman was drunk with the blood of God's people, the blood of those who bore testimony to Jesus. When I saw her, I was greatly astonished.
NIV
I also saw that the woman was drunk, [drunk] with the blood of the saints (God's people) and the blood of the martyrs [who witnessed] for Jesus. And when I saw her, I was utterly amazed and wondered greatly.
AMP
And I saw the woman drunken with the blood of the saints, and with the blood of the martyrs of Jesus: and when I saw her, I wondered with great admiration.
KJV