Chapter VII
EXTRAORDINARY FUNCTIONS
OF LAY FAITHFUL
[146.] There can be no substitute whatsoever for the ministerial Priesthood. For if a Priest is lacking in the community, then the community lacks the exercise and sacramental function of Christ the Head and Shepherd, which belongs to the essence of its very life.[247] For “the only minister who can confect the sacrament of the Eucharist in persona Christi is a validly ordained Priest”.[248]
[147.] When the Church’s needs require it, however, if sacred ministers are lacking, lay members of Christ’s faithful may supply for certain liturgical offices according to the norm of law.[249] Such faithful are called and appointed to carry out certain functions, whether of greater or lesser weight, sustained by the Lord’s grace. Many of the lay Christian faithful have already contributed eagerly to this service and still do so, especially in missionary areas where the Church is still of small dimensions or is experiencing conditions of persecution,[250] but also in areas affected by a shortage of Priests and Deacons.
[148.] Particular importance is to be attached to the training of catechists, who by means of great labours have given and still give outstanding and altogether necessary help in the spreading of the faith and of the Church.[251]
[149.] More recently, in some dioceses long since evangelized, members of Christ’s lay faithful have been appointed as “pastoral assistants”, and among them many have undoubtedly served the good of the Church by providing assistance to the Bishop, Priests and Deacons in the carrying out of their pastoral activity. Let care be taken, however, lest the delineation of this function be assimilated too closely to the form of pastoral ministry that belongs to clerics. That is to say, attention should be paid to ensuring that “pastoral assistants” do not take upon themselves what is proper to the ministry of the sacred ministers.
[150.] The activity of a pastoral assistant should be directed to facilitating the ministry of Priests and Deacons, to ensuring that vocations to the Priesthood and Diaconate are awakened and that lay members of Christ’s faithful in each community are carefully trained for the various liturgical functions, in keeping with the variety of charisms and in accordance with the norm of law.
[151.] Only out of true necessity is there to be recourse to the assistance of extraordinary ministers in the celebration of the Liturgy. Such recourse is not intended for the sake of a fuller participation of the laity but rather, by its very nature, is supplementary and provisional.[252] Furthermore, when recourse is had out of necessity to the functions of extraordinary ministers, special urgent prayers of intercession should be multiplied that the Lord may soon send a Priest for the service of the community and raise up an abundance of vocations to sacred Orders.[253]
[152.] These purely supplementary functions must not be an occasion for disfiguring the very ministry of Priests, in such a way that the latter neglect the celebration of Holy Mass for the people for whom they are responsible, or their personal care of the sick, or the baptism of children, or assistance at weddings or the celebration of Christian funerals, matters which pertain in the first place to Priests assisted by Deacons. It must therefore never be the case that in parishes Priests alternate indiscriminately in shifts of pastoral service with Deacons or laypersons, thus confusing what is specific to each.
[153.]
Furthermore, it is never licit for laypersons to assume the role or the vesture of a Priest or a Deacon or other clothing similar to such vesture
vatican.va/roman_curia/congregations/ccdds/documents/rc_con_ccdds_doc_20040423_redemptionis-sacramentum_en.html
