Revelation 8:1

And when he opened the seventh seal, there followed a silence in heaven, about the space of half an hour.

Revelation 6:1

And I saw, when the Lamb opened one of the seven seals, and I heard one of the four Living Creatures say, with a voice like thunder, "Come!"

Revelation 5:1

Then I saw lying upon the right hand of Him who sat upon the throne, a book written within and on the back, close sealed with seven seals.

Revelation 6:3

And when he opened the second seal, I heard the second Living Creature say, "Come!"

Revelation 6:5

And when he opened the third seal, I heard the third Living Creature say, "Come!" And I saw, and lo, a black horse! He who sat on him had a balance in his hand.

Revelation 6:7

And when he opened the fourth seal, I heard the voice of the fourth Living Creature calling, "Come!"

Revelation 6:9

And when he opened the fifth seal, I saw underneath the altar the souls of those who had been slain for the word of God, and for the testimony which they bore.

Revelation 6:12

And I looked when he opened the sixth seal, and there was a great earthquake; and the sun became black, like sackcloth, and the full moon became like blood;

Revelation 5:9

And they sang a new song, saying, "Worthy art thou to take the book And to open its seals; For thou wast slain and didst ransom for God Men out of every tribe and tongue and people and nation;

Treasury of Scripture Knowledge

Summary

And when he had opened the seventh seal, there was silence in heaven about the space of half an hour.

Bible References

And

Revelation 5:1
Then I saw lying upon the right hand of Him who sat upon the throne, a book written within and on the back, close sealed with seven seals.
Revelation 6:1
And I saw, when the Lamb opened one of the seven seals, and I heard one of the four Living Creatures say, with a voice like thunder, "Come!"