Redemptoris Mater §32

³² In the Byzantine liturgy, in all the hours of the Divine Office, praise of the Mother is linked with praise of her Son and with the praise which, through the Son, is offered up to the Father in the Holy Spirit. In the Anaphora or Eucharistic Prayer of St. John Chrysostom, immediately after the epiclesis the assembled community sings in honor of the Mother of God: "It is truly just to proclaim you blessed, O Mother of God, who are most blessed, all pure and Mother of our God. We magnify you who are more honorable than the Cherubim and incomparably more glorious than the Seraphim. You who, without losing your virginity, gave birth to the Word of God. You who are truly the Mother of God." These praises, which in every celebration of the Eucharistic Liturgy are offered to Mary, have moulded the faith, piety and prayer of the faithful. In the course of the centuries they have permeated their whole spiritual outlook, fostering in them a profound devotion to the "All Holy Mother of God."