From the very outset of our pontificate, in speaking of daily devotions we have repeatedly urged the faithful (often in eager tones that frankly hinted our future design) to cherish warmly that marvellous manifestation of divine mercy toward individuals and Holy Church and the whole world redeemed and saved by Jesus Christ: we mean devotion to his Most Precious Blood.
From infancy this devotion was instilled in us within our own household. Fondly we still recall how our parents used to recite the Litany of the Most Precious Blood every day during July.
The Apostle's wholesome advice comes to mind: "Keep watch, then, over yourselves, and over God's Church, in which the Holy Spirit has made you bishops; you are to be the shepherds of that flock which he won for himself at the price of his own blood." Now among the cares of our pastoral office, venerable brethren, we are convinced that, second only to vigilance over sound doctrine, preference belongs to the proper surveillance and development of piety, in both its liturgical and private expressions. With that in mind, we judge it most timely to call our beloved children's attention to the unbreakable bond which must exist between the devotions to the Most Holy Name and Most Sacred Heart of Jesus -- already so widespread among Christians -- and devotion to the incarnate Word's Most Precious Blood, "shed for many, to the remission of sins."
Unlimited is the effectiveness of the God-Man's Blood -- just as unlimited as the love that impelled him to pour it out for us, first at his circumcision eight days after birth, and more profusely later on in his agony in the garden, in his scourging and crowning with thorns, in his climb to Calvary and crucifixion, and finally from out that great wide wound in his side which symbolizes the divine Blood cascading down into all the Church's sacraments. Such surpassing love suggests, nay demands, that everyone reborn in the torrents of that Blood adore it with grateful love.
The Blood of the new and eternal covenant especially deserves this worship of latria when it is elevated during the sacrifice of the Mass. But such worship achieves its normal fulfillment in sacramental communion with the same Blood, indissolubly united with Christ's Eucharistic Body. In intimate association with the celebrant the faithful can then truly make his sentiments at communion their own: "I will take the chalice of salvation and call upon the name of the Lord. . . The Blood of our Lord Jesus Christ preserve my soul for everlasting life. Amen." Thus as often as they come worthily to this holy table they will receive more abundant fruits of the redemption and resurrection and eternal life won for all men by the Blood Christ shed "through the Holy Spirit."
Nourished by his Body and Blood, sharing the divine strength that has sustained count less martyrs, they will stand up to the slings and arrows of each day's fortunes -- even if need be to martyrdom itself for the sake of Christian virtue and the kingdom of God. Theirs will be the experience of that burning love which made St. John Chrysostom cry out:
Let us, then, come back from that table like lions breathing out fire, thus becoming terrifying to the Devil, and remaining mindful of our Head and of the love he has shown for us. . . This Blood, when worthily received, drives away demons and puts them at a distance from us, and even summons to us angels and the Lord of angels. . . This Blood, poured out in abundance, has washed the whole world clean. . . This is the price of the world; by it Christ purchased the Church... This thought will check in us unruly passions. How long, in truth, shall we be attached to present things? How long shall we remain asleep? How long shall we not take thought for our own salvation? Let us remember what privileges God has bestowed on us, let us give thanks, let us glorify him, not only by faith, but also by our very works.
If only Christians would reflect more frequently on the fatherly warning of the first pope: "Look anxiously, then, to the ordering of your lives while your stay on earth lasts.
You know well enough that your ransom was not paid in earthly currency, silver or gold; it was paid in the precious blood of Christ; no lamb was ever so pure, so spotless a victim." If only they would lend a more eager ear to the apostle of the Gentiles: "A great price was paid to ransom you; glorify God by making your bodies the shrines of his presence." Their upright lives would then be the shining ex ample they ought to be; Christ's Church would far more effectively fulfill its mission to men. God wants all men to be saved, for he has willed that they should all be ransomed by the Blood of his only-begotten Son; he calls them all to be members of the one Mystical Body whose head is Christ. If only men would be more responsive to these promptings of his grace, how much the bonds of brotherly love among individuals and peoples and nations would be strengthened. Life in society would be so much more peaceable, so much worthier of God and the human nature created in his image and likeness. - St.John XXIII
The Blood of Jesus makes fallen souls virginal.
July 1 is the feast day of the most Precious Blood of Jesus, while the entire month of July is dedicated to the Precious Blood. I can tell you from experience that devotion to the Precious Blood is especially efficacious for obtaining the grace of contrition after falling into sin. Likewise it is a powerful remedy against sins of the flesh. I highly recommend recitation of the Litany of the Precious Blood, especially if you feel bound by a particular sin.