And he said unto them,
This is my blood of the new covenant, which is shed for many.
All Commentaries on Mark 14:24 Go To Mark 14
Ambrose of Milan
AD 397
Jesus himself speaks of his blood. Before the consecration it is mentioned as something else; after the consecration it is called blood. And you say “Amen,” that is, “It is true.” Let the mind within confess what the mouth speaks. Let the heart feel what the words utter.