12 We also, Venerable Brethren, moved by the example of Our predecessors, earnestly exhort and conjure you, as We have so often done, to devote special care to this sacredwarfare, so that by your efforts fresh forces may be daily enrolled on everyside. Through you and those of your clergy who have care of souls, let thepeople know and duly appreciate the efficacy of this Sodality and its usefulnessfor man's salvation. This We beg all the more earnestly as of late thatbeautiful devotion to our Blessed Mother, called "the living Rosary,"has once more become popular. We have gladly blessed this devotion, and Weearnestly desire that you would sedulously and strenuously encourage its growth.We cherish the strongest hope that these prayers and praises, rising incessantlyfrom the lips and hearts of so great a multitude, will be most efficacious.Alternately rising by night and by day, throughout the different countries ofthe earth, they combine a harmony of vocal prayer with meditation upon thedivine mysteries. In ages long past this perennial stream of praise and prayerwas foretold in those inspired words with which Ozias in his song addressedJudith: "Blessed art thou, O daughter, by the Lord, the Most High God,above all women upon the earth... because He bath so magnified thy name thisday that thy praise shall not depart out of the mouth of man." And all thepeople of Israel acclaimed him in these words: "So be it, so be it!"(Judith xiii., 23, 24, Z6).
Source: Augustissimae Virginis Mariae (Vatican.va)