from The Moral Reflections on Job by Pope St Gregory the Great
The text goes on fittingly to speak of Christ�s blood: Earth, do not cover over my blood, do not let my cry find a hiding place in you. When man sinned, God had said: Earth you are, and to earth you will return. Earth does not cover over the blood of our Redeemer, for every sinner, as he drinks the blood that is the price of his redemption, offers praise and thanksgiving, and to the best of his power makes that blood known to all around him.
Earth has not hidden away his blood, for holy Church has preached in every corner of the world the mystery of its redemption.
Notice what follows: Do not let my cry find a hiding place in you. The blood that is drunk, the blood of redemption, is itself the cry of our Redeemer. Paul speaks of the sprinkled blood that calls out more eloquently than Abel�s. Of Abel�s blood Scripture had written: The voice of your brother�s blood cries out to me from the earth. The blood of Jesus calls out more eloquently than Abel�s, for the blood of Abel asked for the death of Cain, the fratricide, while the blood of the Lord has asked for, and obtained, life for his persecutors.
If the sacrament of the Lord�s passion is to work its effect in us, we must imitate what we receive and proclaim to mankind what we revere. The cry of the Lord finds a hiding place in us if our lips fail to speak of this, though our hearts believe in it. So that his cry may not lie concealed in us it remains for us all, each in his own measure, to make known to those around us the mystery of our new life in Christ.