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This Church is our heavenly Father's house, a place of solace and grace, so feel at home. Enter reverently, pray quietly, sing joyfully, listen attentively, give cheerfully, and come back gladly. We are a welcoming Catholic Community called by God to live out the message of Christ in love and service to all people. If you are new to our Community, WELCOME!

St. Denis Catholic Community
2151 S. Diamond Bar Blvd.,
Diamond Bar, CA 91765

Pastoral Office is open
    9:00 a.m. to 5:00 p.m.
    every day, except Tuesdays and holidays
Phone:  (909) 861-7106
Fax:  (909) 861-2697


The office will be closed on Friday, July 3 and Saturday, July 4th in observance of the holiday.



Upcoming & Recent Masses


Worship Aid Mass, Saturday (7-4-20)


Mass, Friday (7-3-20)


Mass, Sunday at 5:30 p.m. (6-28-20)
(Worship Aid with Readings)
(Printable Worship Aid with Readings)

Mass, Sunday at 10:30 a.m. (6-28-20)
(Worship Aid with Readings)
(Printable Worship Aid with Readings)



St. Denis Has Reopened (6-30-20)

After being closed to the public for almost 12 weeks, St. Denis has reopened.  However, the reopening is happening gradually and in steps in accordance with the guidelines and requirements of the CDC, the State of California, the County of Los Angeles, and the Archdiocese of Los Angeles. 

Our primary concern is for the people of St. Denis—for the health and safety of the priests, staff, parishioners, and visitors.  We don’t want them to get sick or be infected with COVID-19.

Therefore, strict social distancing (including face coverings) will be observed; and attendance in the church will be limited to 100 people. 

People who have COVID-19, who have been exposed to COVID-19, who live with someone who has COVID-19, or who have one or more symptoms of COVID-19 (such as fever or chills; cough; shortness of breath or difficulty breathing; fatigue; muscle or body aches; headache; new loss of taste or smell; sore throat; congestion or runny nose; nausea or vomiting; diarrhea; etc.) must stay home and must not come to the church.

Furthermore, people at high-risk for severe illness from COVID-19 are strongly encouraged to stay home and not come to the church.  Those at high-risk include:
  -  People 65 years and older
  -  People who live in a nursing home or long-term care facility
People of all ages with underlying medical conditions, particularly if not well controlled, including:
  -  People with chronic lung disease or moderate to severe asthma
  -  People who have serious heart conditions
  -  People who are immunocompromised
       -  Many conditions can cause a person to be immunocompromised, including cancer treatment, smoking, bone marrow or organ transplantation, immune deficiencies, poorly controlled HIV or AIDS, and prolonged use of corticosteroids and other immune weakening medications
  -  People with severe obesity (body mass index [BMI] of 40 or higher)
  -  People with diabetes
  -  People with chronic kidney disease undergoing dialysis
  -  People with liver disease

In addition, no one is obliged to attend Mass on Sundays or Holy Days of Obligation because Archbishop José Gomez has indefinitely dispensed everyone in the Archdiocese of Los Angeles from this obligation. 

For the foregoing reasons and other reasons, many parishioners who normally attend Mass at St. Denis will not do so at this time.  Nevertheless, we encourage you to participate in our livestreamed Masses.  We livestream our 11:00 a.m. and 5:30 p.m. Masses every Sunday and our 8:00 a.m. Mass every weekday (Monday through Saturday).  We livestream via our Facebook page and then upload the video shortly thereafter to our YouTube channel.


Our schedule for public Masses is as follows:

Monday through Friday:  Mass at 8:00 a.m. (also livestreamed)
Saturday:  Masses at 8:00 a.m. (also livestreamed) and 5:30 p.m. (Sunday Vigil)

Sunday:  Masses at 7:00 a.m., 9:00 a.m., 11:00 a.m. (also livestreamed), 1:00 p.m., and 5:30 p.m. (also livestreamed) 

(Please note our new Sunday Mass schedule, which we revised in order to add a 9:00 a.m. Mass to accommodate more people.)

Everyone who attends Mass has to have a valid ticket, sit in his/her assigned seat, wear a face covering, and follow all of the other rules for preventing the spread of COVID-19. 

No one can be admitted to the church for Mass without a valid ticket for that Mass.  Please do not come to the parish for Mass unless you have a valid ticket.  People without valid tickets will not be admitted, and will be asked to return to their homes.

Information about obtaining tickets for Mass and the other requirements for attending Mass are set forth here.


Monday through Saturday:  Confessions in the church and the courtyard after the 8:00 a.m. Mass. 
Friday:  Confessions in the Hall from 5:00-6:00 p.m.
Saturday:  Confessions in the Hall from 3:00-4:30 p.m.  

Furthermore, you may call the Pastoral Office (909-861-7106) to schedule confession with a priest at another time.

Additional details about confessions are set forth here.

Church Hours:

Monday through Saturday, the church opens for the 8:00 a.m. Mass and remains open until 10:30 a.m. for visitors and private prayer.  The church is then closed for cleaning and sanitizing.

As described below, the Blessed Sacrament Chapel, which is part of the church, is also open from 3:00-5:00 p.m. Monday through Friday.

Blessed Sacrament Chapel Hours: 

The chapel is now open from about 9:00 or 9:15 a.m. to 10:30 a.m. Monday through Saturday.  The chapel is open for visitors after weekday confessions are completed and after the chapel has been sanitized following the confessions.

In addition, the chapel is open from 3:00-5:00 p.m. Monday through Friday.  Visitors may enter the chapel through the open door that faces the church’s lower parking lot.

When visiting the chapel, people need to maintain strict social distancing of at least six feet and wear face coverings. 

The pews in the chapel are temporarily closed, because with their seat cushions, they are too difficult to clean multiple times per day.  Instead, people may sit in the available chairs, which are spaced at least six feet apart around the perimeter of the chapel.  Consequently, seating in the chapel currently is limited to nine people.   

Eucharistic Exposition and Adoration:

On Friday, the church is open for silent Eucharistic Exposition and Adoration from 8:30-10:30 a.m. (ending with a simple benediction).

The Holy Hour at 8:00 p.m. on Friday is livestreamed only, and is not yet open to the public, but we hope to be able to open it to the public in the coming weeks.



Join the priests for weekday prayer

At 7:00 p.m. on Mondays, Tuesdays, and Thursdays, the priests use Zoom to lead parishioners to pray in different ways, such as praying the Rosary, praying with Sacred Scripture, and other ways.  To join the priests, just click on the Zoom link below on or shortly before 7:00 p.m. for the relevant weekday.  (If you haven’t used Zoom before, you can download the Zoom app from the link below just before the meeting.)  

Mondays at 7:00 p.m. with Fr. Dennis (Praying with Sacred Scripture (lectio divina))
Zoom link:
(Handout for 6-29-20)

Tuesdays at 7:00 p.m. with Fr. John (Praying with Sacred Scripture and in other ways)
Zoom link:
(a handout will be posted here prior to the meeting)

Thursdays at 7:00 p.m. with Fr. Vincent (Praying the Rosary)
Zoom link:

In addition, please join the priests for livestreamed prayer on Wednesdays and Fridays:

Wednesdays at 7:00 p.m.:  Evening Prayer from the Liturgy of the Hours (with music)

Fridays at 8:00 p.m.:  Holy Hour (with Adoration of the Blessed Sacrament and Benediction)

We livestream via our Facebook page and then upload the video shortly thereafter to our YouTube channel.



St. Denis Now

St. Denis Now is a weekly video series in which Fr. John Palmer talks with different members of the St. Denis community about what’s happening at St. Denis.  All of the episodes are available on St. Denis’s YouTube channel and Facebook page.

In Episode 4, Fr. John talks with Celia Flores, our Director of Religious Education.  She explains how she and her catechists are helping the children and their families grow in the faith even though everyone is at home because of the Governor's "Stay at Home Order."

In Episode 3, Fr. John talks with Patrick Zubiate, who is our Director of Music.  They talk about reopening St. Denis Church. 

In Episode 2, Fr. John interviews Veronica Smith, a parishioner who is a licensed clinical social worker.  She advises parents, children, and all of us what we can do to deal with the anxiety, stress, and depression caused by the coronavirus pandemic.

In Episode 1, Fr. John talks with Jasmine Blackburn, who is our director of Teen Confirmation and Youth Ministry; and they discuss the way forward for St. Denis after COVID-19 in the weeks and months ahead. 



Livestreaming/Media Schedule


   11:00 a.m.    Mass (with cantor and organ/piano)
                       (a worship aid will be posted here prior to Mass)

   5:30 p.m.      Mass (with contemporary music for youths, young adults, and others)
                       (a worship aid will be posted here prior to Mass)


   8:00 a.m.      Mass

   12:00 noon   “Mondays at Noon”:  a weekly organ recital by Dr. Patrick Rogers
                       (20-30 minutes)


   8:00 a.m.      Mass


   8:00 a.m.      Mass

   7:00 p.m.      Evening Prayer (with singing/chanting and piano)
                       (a worship aid will be posted here prior to Evening Prayer)


   8:00 a.m.      Mass


   8:00 a.m.      Mass

   8:00 p.m.      Holy Hour (with Eucharistic Adoration, Taizé-style music, praying, silence)
                       (a worship aid will be posted here prior to the Holy Hour)


   8:00 a.m.      Mass

All of our liturgies are livestreamed via St. Denis’s Facebook page; and each video is uploaded to St. Denis’s Youtube channel shortly thereafter. 

The livestreams are viewable even if you do not have a Facebook account.  (If you don’t have an account, you may have to refresh St. Denis’s Facebook page to get it to open; and if a pop-up appears encouraging you to set up an account, you can dismiss the pop-up by clicking on “Not Now.”)

When viewing a Mass or liturgy online, please participate as much as you can—e.g., by saying the responses and prayers aloud and by standing, kneeling, and sitting at the appropriate times.  At the beginning of the Mass, please type your prayer intentions into the Comments section on Facebook or Youtube, because, during the Universal Prayer, we will lift up to God all of the prayers in the Comments sections. Then, at the Sign of Peace, please offer the peace of Christ to those in your household, even if they are not watching Mass with you.  You also can offer the peace of Christ to others in the virtual Mass community by using the Comments section of Facebook or YouTube. 

Videos of all of our liturgies that were livestreamed or recorded from March 27 onward are available on St. Denis’s Youtube channel.

Our livestreaming plans are changing and evolving.  Therefore, please check our website ( regularly for the latest information about our current and upcoming videos.


Holy Hour, Friday (7-3-20)
(Worship Aid)


Mass, Friday (7-3-20)


Mass, Thursday (7-2-20)


Evening Prayer, Wednesday (7-1-20)
(Worship Aid)


Mass, Wednesday (7-1-20)


Mass, Tuesday (6-30-20)


Mass, Monday (6-29-20)


Mass, Sunday at 5:30 p.m. (6-28-20)
(Worship Aid with Readings)
(Printable Worship Aid with Readings)


Mass, Sunday at 10:30 a.m. (6-28-20)
(Worship Aid with Readings)
(Printable Worship Aid with Readings)


"Permission to podcast / stream the music in this service obtained from ONE LICENSE with license #A730717. All rights reserved.”




Archbishop José Gomez invites every Catholic to make his or her commitment for 2020 to Together in Mission, which provides financial assistance to 67 poor parishes and 74 poor Catholic schools in the Los Angeles Archdiocese. 

This year, our parish has been asked to raise $129,494.  Last year, 488 parish donors helped us to raise $142,003; and we exceeded our goal for the first time in several years.  We sincerely thank everyone who contributed last year and who will contribute this year to Together in Mission.  

This year’s theme “Our Story is Alive” reminds us that our gifts to Together in Mission are an active demonstration of our faith and love for those in our Archdiocese who need our support.  Please make a pledge with the information that was mailed to your home, the pledge envelopes that are available in the pews, online at, or by calling 213-637-7672.

When making a pledge, please indicate that St. Denis is your parish so that your pledge and donations will count toward St. Denis's 2020 goal.

Your gifts to Together in Mission ensure that every Catholic living in the Archdiocese has a parish to celebrate their faith and access to a Catholic school education.  You are living your faith through your actions when you support Together in Mission. 

Thank you for your generosity.

Again, the website for Together in Mission is; and please do not forget to select St Denis as your parish.



Important notice

The 42nd Oberammergau Passion Play will be postponed due to the current situation caused by the corona pandemic. The basis for this is a decision of the district administration of Garmisch-Partenkirchen, which prohibits the performance of the event planned from 16.05.2020 to 04.10.2020. The health of our guests and participants is our highest priority, therefore the responsible persons have decided to postpone the premiere of the Passion Play, which was planned for 16 May 2020, until 2022. The premiere is now scheduled for May 21, 2022.

The health of the population is a top priority for the community of Oberammergau and the directing team around Christian Stückl as well. The Corona pandemic has made it impossible to complete this year's play without endangering the performers and guests. Furthermore, the perspective for this year is unclear. A postponement of only a few months seemed unacceptable to everyone involved.

Click here to see past St. Denis events



Reflections from
Fr. Dennis

(Previous Reflections)





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Archdiocesan & Parish Appeals

Building Maintenance and Repairs Second Collection

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