'''Credo''' (''Credo in unum Deum'' - "I believe in one God…") is the third part of the [[Mass (music)| Latin Mass Ordinary]]. As a sung or chanted version of the [[Nicene Creed]] it is an affirmation of Christian faith. It had appeared in Eastern rites by the sixth century, but was not introduced into the Roman Catholic Mass until 1014. | '''Credo''' (''Credo in unum Deum'' - "I believe in one God…") is the third part of the [[Mass (music)| Latin Mass Ordinary]]. As a sung or chanted version of the [[Nicene Creed]] it is an affirmation of Christian faith. It had appeared in Eastern rites by the sixth century, but was not introduced into the Roman Catholic Mass until 1014. |