Luzern is a Catholic canton (this distinction is not as strong today as in the past, but cantons are traditionally either Catholic or Protestant, a few of them are mixed). Remember, Switzerland still has the state/church connection and most of the state churches are in the beautiful big old cathedrals.
Here is the link for the church mentioned by ezollner1 above.
https://jesuitenkirche-luzern.ch
You want to look under “Gottesdienste” (church services)
https://jesuitenkirche-luzern.ch/gottesdienste/
Here is a translation into English:
Services on
Sundays and Holidays
7:00 a.m. (no sermon)
10:00 a.m., 3:00 p.m., 5:00 p.m.
Services on Weekdays
Mon, Thu 5:15 p.m.
Tue, Wed, Fri, Sat 7:00 a.m.
I don’t know if they will offer this, but when you arrive you can see if there is “Ubersetzung” (translation) into English.