Liturgy is the participation of the People of God in the "work of God."

It refers not only to the celebration of divine worship but also to the proclamation of the Gospel and to active charity.

Before we can come to the liturgy we must be called to faith and conversion: "But how are men to call upon him in whome they have not believed? And how are they to believe in him of whom they have never heard? And how are they to hear without a preacher? And how can men preach unless they are sent?" (Romans 10:14-15)