Alcuin of York — on Rev 11:15 (COMMENTARY ON REVELATION)

“And the seventh sounded the trumpet: and there were great voices in heaven. This seventh angel sounds the trumpet as the Lord appears for the judgment. By this angel we understand the Church, no longer preaching, but singing mercy and judgment for the Lord. This is why the angel standing upon the earth and the sea swears that time shall be no longer but the end will come with the seventh trumpet. The great voices in heaven, that is in the Church, are thanksgivings; and it is right to call them great, because a great desire is arising concerning great things. John shows where these voices come from, adding, saying: The kingdom of this world— that is the kingdom in which the old enemy used to reign — is become God's and his Christ's, and they shall reign for ever and ever. In them, that is the Father and the Son, the Trinity is understood.”