Revelation 8:13
And I saw, and heard an eagle, as he flew in mid-heaven, saying, with a loud voice, Woe, woe, woe to the inhabitants of the earth, because of the remaining voices of the trumpets of the three angels which are yet to sound.
Revelation 11:14
The second woe is past: behold, the third woe comes quickly.
Revelation 9:12
The first woe is past: behold, there are coming, after this, two woes more.
Revelation 14:6
And I saw another angel flying in mid-heaven, having the eternal gospel to preach to those who dwell on the earth, even to every nation and tribe and tongue and people;
Revelation 19:17
And I saw an angel standing in the sun; and he cried with a loud voice, saying to all the birds that fly in mid-heaven. Come, gather yourselves to the great supper of God,
Hebrews 1:14
Are they not all ministering spirits, sent forth to minister to those who shall inherit salvation?
Revelation 9:1
And the fifth angel sounded; and I saw a star fall from heaven to the earth; and there was given to him the key of the pit of the abyss;
Revelation 14:3
And they sung a new song before the throne, and before the four living creatures, and the elders: and no one was able to learn the song, but the hundred and forty-four thousand that had been redeemed from the earth.