Revelation 7:1
The Sealing of the 144,000
7:1 After this I saw four angels standing at the four corners of the earth, holding back the four winds of the earth so no wind could blow on the earth, on the sea, or on any tree.
Revelation 10:7
10:7 But in the days when the seventh angel is about to blow his trumpet, the mystery of God is completed, just as he has proclaimed to his servants the prophets.”
Revelation 8:13
8:13 Then I looked, and I heard an eagle flying directly overhead, proclaiming with a loud voice, “Woe! Woe! Woe to those who live on the earth because of the remaining sounds of the trumpets of the three angels who are about to blow them!”