• Vatican Council II, Constitutio dogmatica Lumen gentium, 21 Nov 1964, AAS 57 (1965) 5-71.5
26. Moreover, every legitimate celebration of the Eucharist is regulated by the bishop, to whom is confided the duty of presenting to the divine majesty the cult of the Christian religion and of ordering it in accordance with the Lord’s injunctions and the Church’s regulations, as further defined for the diocese by his particular decision.
• In reality, the ministerial and hierarchical priesthood, the priesthood of the bishops and the priests, and, at their side, the ministry of the deacons -- ministries which normally begin with the proclamation of the Gospel -- are in the closest relationship with the Eucharist. The Eucharist is the principal and central raison d'etre of the sacrament of the priesthood, which effectively came into being at the moment of the institution of the Eucharist, and together with it. JPII letter to bishops (Dominicae Cenae, On the Mystery and Worship of the Eucharist, His Holiness Pope John Paul II, Promulgated on February 24, 1980, To All the Bishops of the Church.)
• The Bishop is the high priest of his flock. "In a certain sense it is from him that the faithful who are under his care derive and maintain their life in Christ" (SC 41).
• The diocesan Bishop is the first steward of the mysteries of God in the particular Church or diocese entrusted to him. He is the moderator, the promoter, and the guardian of the liturgical life of the Church in his diocese. It is he who offers the Eucharistic Sacrifice, or causes it to be offered, so that the Church continually lives and grows (see CD 15; SC 41; CIC can. 387; RS 19).
• Vatican Council II, Decretum Christus Dominus, 28 Oct 1965, AAS 58 (1966) 673-701.6
15. It is therefore bishops who are the principle dispensers of the mysteries of God, and it is their function to control, promote and protect the entire liturgical life of the Church entrusted to them.