Rev 8, 8-13 The three angels are about to blow

(Rev 8, 8-13) The three angels are about to blow

[8] When the second angel blew his trumpet, something like a large burning mountain was hurled into the sea. A third of the sea turned to blood, [9] a third of the creatures living in the sea died, and a third of the ships were wrecked. [10] When the third angel blew his trumpet, a large star burning like a torch fell from the sky. It fell on a third of the rivers and on the springs of water. [11] The star was called "Wormwood," and a third of all the water turned to wormwood. Many people died from this water, because it was made bitter. [12] When the fourth angel blew his trumpet, a third of the sun, a third of the moon, and a third of the stars were struck, so that a third of them became dark. The day lost its light for a third of the time, as did the night. [13] Then I looked again and heard an eagle flying high overhead cry out in a loud voice, "Woe! Woe! Woe to the inhabitants of the earth from the rest of the trumpet blasts that the three angels are about to blow!"

(CCC 328) The existence of the spiritual, non-corporeal beings that Sacred Scripture usually calls "angels" is a truth of faith. The witness of Scripture is as clear as the unanimity of Tradition. (CCC 329) St. Augustine says: "'Angel' is the name of their office, not of their nature. If you seek the name of their nature, it is 'spirit'; if you seek the name of their office, it is 'angel': from what they are, 'spirit', from what they do, 'angel'" (St. Augustine, En. in Ps. 103, 1, 15: PL 37, 1348). With their whole beings the angels are servants and messengers of God. Because they "always behold the face of my Father who is in heaven" they are the "mighty ones who do his word, hearkening to the voice of his word" (Mt 18:10; Ps 103:20).