In Acts 2:42,46; St. Luke reveals what the early Christians from the very beginning were doing at that was the celebration of "the breaking of the bread."  

Below is the basic outline of the Holy Mass.

1. Introduction (Introit)

   • Greeting

   • Peneitential Rite

   • Gloria

   • Collect (Opening prayer)

   • Concluded by "Amen."

2. Liturgy of the Word

   • First Reading

   • Responsorial Psalm

   • Second Reading

   • Gospel

   • Homily

   • Creed

   • Intercessions

   • Concluded by "Amen."

3. Liturgy of the Eucharist

   • Preparation 

     • Preparation of the Alter

     • Offering

     • Offertory Prayer

     • Concluded by "Amen."

   • Lamb of God (Agnus Dei)

   • Eucharistic Prayer

     • Concluded with the "Great Amen."

   • Communion

     • Concluded by "Amen."

4. Concluding Rite

   • Dismissal