Revelation 8:13
And I looked, and I heard one eagle flying in mid-heaven, saying in a great voice, Woe, woe, woe, to those who dwell on the earth from the remaining sounds of the trumpet of the three agents who are going to sound.
Revelation 11:14
The second woe departed. Behold, the third woe comes quickly.
Revelation 9:12
One woe is departed, behold, two woes yet come after these.
Revelation 14:6
And I saw an agent flying in mid-heaven having eternal good-news to proclaim to those who sit on the earth, and to every nation and tribe and tongue and people,
Revelation 19:17
And I saw one agent having stood in the sun, and he cried out in a great voice, saying to all the birds flying in mid-heaven, Come, gather together to the great supper of God,
Psalm 103:20
Bless LORD, ye his [heavenly] agents, who are mighty in strength, who fulfill his word, hearkening to the voice of his word.
Ezekiel 2:10
And he spread it before me, and it was written inside and outside. And there were written in it lamentations and mourning and woe.
Hebrews 1:14
Are they not all ministering spirits sent forth for service for the sake of those who are going to inherit salvation?
Revelation 9:1
And the fifth agent sounded, and I saw a star fallen from the sky to the earth. And the key of the pit of the abyss was given to him.
Revelation 14:3
And they sing a new song before the throne, and before the four beings and the elders. And none could learn the song except the hundred and forty-four thousand, those who have been redeemed from the earth.