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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

Phone:  (909) 861-7106  
   (answered from 9:00 a.m. to 5:00 p.m.,
   Monday through Friday).

Fax:      (909) 861-2697 




Prayer Meeting with Fr. Dennis
via Zoom tonight at 7:00 p.m.

At 7:00 p.m. on Monday, Fr. Dennis will lead parishioners to pray with Sacred Scripture using the Gospel Reflection Process, which is described in this handout

To join him, please click on the following Zoom link shortly before 7:00 p.m.: 
(If you haven’t used Zoom before, you can download the Zoom app from this link just before the meeting.) 

In addition, please print out (or open in a separate tab in your web browser) the handout, which you will need for this prayer meeting.



St. Denis’s Plans for Reopening


St. Denis plans to reopen the church for public Masses for Sunday, June 7 (the Solemnity of the Most Holy Trinity), with strict social distancing (including face masks) and a limit of 100 people per Mass.  However, no one is obliged to attend Sunday Mass because Archbishop José Gomez has indefinitely dispensed everyone in the Archdiocese of Los Angeles from this obligation. 

People with COVID-19 or symptoms consistent with COVID-19 (such as cough, shortness of breath, fever, and other symptoms) must stay home and not attend Mass.  Furthermore, high-risk individuals (i.e., people who are 65 and older, who are immuno-compromised, or who have serious underlying medical conditions, such as lung disease, heart disease, and diabetes) are encouraged to stay home in order to stay safe. 

Even after reopening the church, St. Denis will continue to livestream two Masses every Sunday and one Mass every weekday.  Therefore, those who are unable to attend Mass in person are encouraged to join us for our livestreamed Masses.  We livestream via our Facebook page and then upload the video shortly thereafter to our YouTube channel.

Some details (including the schedule for the public Masses on Sunday, June 7) are still being worked out; and we will publish further information on our website ( as soon as we can in the next few days. 



Upcoming & Recent Masses


Mass, Monday (6-1-20)


Mass, Sunday at 5:30 p.m. (5-31-20)
(Worship Aid)

Mass, Sunday at 10:30 a.m. (5-31-20)
(Worship Aid)



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:
(a handout will be posted here prior to the meeting)

Tuesdays at 7:00 p.m. with Fr. John (Praying with Sacred Scripture and in other ways)
Zoom link:
(Handout for 5/26/20)

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


   10:30 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 (with live piano music)

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


   8:00 a.m.      Mass (with live piano music)


   8:00 a.m.      Mass (with live piano music)

   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 (with live piano music)


   8:00 a.m.      Mass (with live piano music)

   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 (with live piano music)

All of our liturgies are livestreamed via St. Denis’s Facebook page; and each video is uploaded to St. Denis’s Youtube channel about 1-2 hours after the end of the liturgy.  Because we are now using a faster, wired Ethernet connection, our livestreaming is less prone to drop-outs than before.

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.


St. Denis Now:  Episode 4 (5-24-20)
"Religious Education at Home"
with Fr. John and Celia Flores


St. Denis Now:  Episode 3 (5-14-20)
"Reopening St. Denis"
with Fr. John and Patrick Zubiate


St. Denis Now:  Episode 2 (5-7-20)
"Coping with the Coronavirus"
with Fr. John and Veronica Smith


St. Denis Now:  Episode 1 (5-5-20)
"The Way Forward"
with Fr. John and Jasmine Blackburn


Greetings from the Priests at St. Denis (4-11-20)


Organ Recital by Dr. Patrick Rogers, Monday (6-1-20)


Mass, Monday (6-1-20)


Mass, Sunday at 5:30 p.m. (5-31-20)
(Worship Aid)


Mass, Sunday at 10:30 a.m. (5-31-20)
(Worship Aid)


Mass, Saturday (5-30-20)


Holy Hour, Friday (5-29-20)
(Worship Aid)


Mass, Friday (5-29-20)


Mass, Thursday (5-28-20)


Evening Prayer, Wednesday (5-27-20)
(Worship Aid)


Mass, Wednesday (5-27-20)


Mass, Tuesday (5-26-20)


Organ Recital by Dr. Patrick Rogers, Monday (5-25-20)


Mass, Monday (5-25-20)


Mass, Sunday at 5:30 p.m. (5-24-20)
(Worship Aid)


Mass, Sunday at 10:30 a.m. (5-24-20)
(Worship Aid)


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



Coronavirus Update (5-14-20)

No Masses at St. Denis Catholic Church

On March 19th, Governor Gavin Newsom issued an Executive Order that everyone in California (with a few exceptions) should stay home to limit the spread of the novel coronavirus.  In order to comply with this Executive Order, and for the safety of everyone, the church and the Pastoral Office are closed.

Until this Executive Order is lifted and life returns to normal or semi-normal, there will be no public Masses and no public gatherings or meetings at St. Denis.  (Nevertheless, someone is answering our main telephone number (909-861-7106) from 9:00 a.m. to 5:00 p.m. Monday through Friday.)

Archbishop José Gomez has indefinitely dispensed all Catholics in the Archdiocese of Los Angeles from the obligation of attending Sunday Mass.  Thus, at least for now, no one is obliged to attend Sunday Mass.

Until our public Masses resume, you are encouraged to participate in the Holy Mass via the Internet.  Every Sunday, St. Denis livestreams two nonpublic Masses:   a Mass at 10:30 a.m. (with cantor and organ/piano) and a Mass at 5:30 p.m. (with contemporary music for youths, young adults, and others).  We also livestream a nonpublic Mass every weekday (Monday through Saturday) at 8:00 a.m.  (Please see the “Livestreaming/Media Schedule” above for further details about St. Denis’s livestreamed Masses.)

For information about livestreamed and televised Masses from the Cathedral of Our Lady of the Angels and elsewhere, please click here.

When viewing an online or televised Mass, 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.

Although they are not able to celebrate public Masses, St. Denis’s priests are celebrating nonpublic Masses for the daily Mass intentions, for our parishioners and parish, and for our country and world, that this coronavirus pandemic will end soon.

In accordance with the Archbishop’s instructions, the priests at St. Denis are unable to offer confessions at this time unless a person is dying or in extremely extraordinary circumstances.  Click here for detailed instructions regarding what to do if you can’t find a priest for confession. 

For those who have scheduled weddings, baptisms, and Quinceaneras in May and June, someone has already called or will call them personally to discuss various accommodations and options.

For more information and updates, please check our website ( regularly. 

For the most updated information and resources on how to limit the impact of the coronavirus, please visit the Archdiocese’s emergency preparedness webpage,

During this time of trial, Archbishop Gomez has asked us to pray a “Prayer in the Time of the Coronavirus,” which is set forth below and which he wrote for this moment.  In addition, I recommend praying the Rosary every day.  (For instructions on praying the Rosary, please click here or here.)   

In this difficult time, God is still with us and hasn’t abandoned us.  May He help all of us to persevere and not lose faith; and may He bless you and your family. 

Sincerely yours in Christ,

Fr. John Palmer
St. Denis Catholic Church



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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