Bede — on Rev 8:7 (Commentary on Revelation)

“And the first angel sounded the trumpet. Rightly, the preaching of the plagues of the trumpet, which is a sign of war, is compared. "Lift up your voice like a trumpet and declare to my people their transgressions" (Isaiah 58). And elsewhere, "Set the trumpet to your lips, like an eagle over the house of the Lord" (Hosea 8), that is, preach loudly that Nebuchadnezzar will come to destroy the temple.”