If we wish to understand the power of Christ's blood, we should go back to the ancient account of its prefiguration in Egypt. Sacrifice a lamb without blemish, commanded Moses, and sprinkle its blood on your doors...In those days, when the destroying angel saw the blood on the doors he did not dare to enter, so how much less will the devil approach now when he sees, not that figurative blood on the doors, but the true blood on the lips of believers, the doors of the temple of Christ.
I love the earthiness of the Latin translation in the LH, fidelium ore lucentem sanguinem veritatis. On the mouths of the faithful we see the shining Blood of truth. Anybody know the Greek?