This week Christians throughout the world mark the passion, death and resurrection of Jesus Christ with special liturgies during the sacred triduum – the three days of Holy Thursday, Good Friday and Holy Saturday – leading up to the solemnity of the resurrection at Easter.

The Cathedral Basilica of SS. Peter and Paul, the mother church for Catholics in the Archdiocese of Philadelphia, will host the following liturgies during the triduum. (See a listing to find a Catholic church in the archdiocese so you can attend one or all of the liturgies in your local area.)

The cathedral is located at 18th Street and the Benjamin Franklin Parkway in Philadelphia.

Chrism Mass, 10 a.m., Holy Thursday, April 13

Archbishop Charles J. Chaput will be the principal celebrant and homilist. All archdiocesan priests are invited to concelebrate with the archbishop and to renew their priestly promises.

During the Mass Archbishop Chaput will bless the Oil of Catechumens as well as the Oil of the Sick and consecrate the Oil of Chrism. These holy oils will be used at parishes throughout the archdiocese during the coming year in the celebration of the sacraments.

The Chrism Mass will be streamed live at www.archphila.org as well as on Archbishop Chaput’s Facebook page at www.facebook.com/ArchbishopChaput. Additionally, the Mass will be broadcast live on The Catholic Channel on Sirius XM, Domestic Church Media, as well as Holy Spirit Radio 1420 AM and 1570 AM.

Mass of the Lord’s Supper, 7:30 p.m., Holy Thursday, April 13

Archbishop Chaput will be the principal celebrant of the Mass and Father Thomas A. Viviano, secretary to the archbishop, will preach.

The Mass commemorates the Last Supper, during which Christ instituted the sacrament of the Holy Eucharist and the sacrament of Holy Orders, and gave his disciples the commandment to love one another.

After the homily, following the example of Christ who washed the feet of the apostles at the Last Supper, Archbishop Chaput will wash the feet of 12 seminarians from St. Charles Borromeo Seminary. Adoration of the Most Blessed Sacrament will continue until 11 p.m.

The Celebration of the Passion of the Lord, 3 p.m., Good Friday, April 14

Auxiliary Bishop John J. McIntyre will preside and preach at the solemn Liturgy of the Lord’s Passion, commemorating the holy passion and death of Jesus Christ. There will be three hours of meditation on the Passion of Christ in the Cathedral from 12 p.m. to 3 p.m., during which confessions in the sacrament of penance will be heard.

Easter Vigil Mass, 8 p.m., Holy Saturday, April 15

Archbishop Chaput will be the principal celebrant and homilist at the Easter Vigil Mass celebrating the resurrection of the Lord. The Easter Vigil contains four components: Service of Light (Blessing of the Fire and Lighting of the Paschal Candle), Liturgy of the Word, Liturgy of Baptism and the Liturgy of the Eucharist.

After a reflective and intense period of prayer during Lent, catechumens (those unbaptized candidates) and candidates (those who have been baptized in other faiths or baptized a Roman Catholic) will become full members of the Catholic Church at the cathedral and at other parishes throughout the archdiocese at the Easter Vigil and during Easter time.

This year close to 500 new Catholics will be welcomed into the church over Easter.

Easter Sunday Mass, 12:30 p.m., Sunday, April 16

Archbishop Chaput will be the celebrant and homilist at the Mass of the Resurrection of the Lord. Other Masses on Easter Sunday at the cathedral include 8 a.m., 9:30 a.m., 11 a.m. (Solemn Mass) and 2 p.m. (Spanish Mass in Cathedral Chapel.) There will not be a 6:30 p.m. Mass.