Philadelphia (CBS) – This is the first Sunday of advent and, for American Catholics, the beginning of a new liturgy that adheres more closely to the original Latin mass.

Even though the congregation at St. Augustine's in Old City has been practicing new responses for a month, old habits die hard. Fr. Jim McBurney had to gently correct them during opening prayers.

FR: The lord be with you.
R: And also with you...
FR: and with your spirit....

Fr. Jim is confident everyone will adjust.

"If this change gets us to think about our worship together, the celebration of the mass and what we're about and why we're gathering, this is a very good thing."

Some parishioners say they prefer the changes.

"It's much more similar to what I grew up with. A lot of things came back that weren't there in recent years."

But others confess to misgivings.

"I think it's not really a great time to be doing something like this. We have so few parishioners as it is today. This is one form of prayer that we all know together and it brings us together and now you're changing all the words? It just makes it difficult. It's less communal."

Reported By Pat Loeb, KYW Newsradio