112 And these are salutary trumpets also, if one believe with the heart, and confess with the mouth; “For with the heart man believes unto righteousness, and with the mouth confession is made unto salvation.” For with this twofold trumpet man arrives at that holy land, namely, the grace of the resurrection. Let them, then, ever sound to you, that you may ever hear the voice of God; may the utterances of the Angels and Prophets ever incite and move you, that you may hasten to things above.
Source: On the Death of Satyrus (New Advent)