The great Praise (Gloria)

Glory to God in the highest, and peace to his people
on earth.
Lord God, heavenly King, almighty God and Father,
we worship you, we give you thanks, we praise you
for your glory.
Lord Jesus Christ, only Son of the Father, Lord God,
Lamb of God, you take away the sin of the world:
have mercy on us; you are seated on the right hand of
the Father: receive our prayer.
For you alone are the Holy One, you alone are the
Lord, you alone are the Most High, Jesus Christ, with
the Holy Spirit, in the glory of God the Father.
Amen.

The 'Gloria' is a cantique of praise and supplication and is sung or said in solemn masses. Single phrases are already known since the 2nd and 4th century. The final text dates from the 9th century.