Revelation 8:1

And, when He opened the seventh seal, there was silence in Heaven about 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 saying, as with a voice of thunder, "Come."

Revelation 5:1

And I saw, in the right hand of Him Who was sitting on the throne, a book written within and on the back, sealed up with seven seals.

Revelation 6:3

And, when He opened the second seal, I heard the second living creature saying, "Come."

Revelation 6:5

And, when He opened the third seal, I heard the third living creature saying, "Come." And I saw, and, behold, a black horse, and he who sat on him had a balance in his hand.

Revelation 6:7

And, when He opened the fourth seal, I heard a voice of the fourth living creature saying, "Come."

Revelation 6:9

And, when He opened the fifth seal, I saw, underneath the altar, the souls of those who had been slain because of the word of God, and because of the testimony which they were holding.

Revelation 6:12

And I saw, when He opened the sixth seal, and a great earthquake took place; and the sun became black as sack-cloth of hair, and the whole moon became as blood;

Revelation 5:9

And they sing a new song, saying, "Worthy art Thou to take the book, and to open its seals; because Thou wast slain, and didst redeem to God, by Thy blood, some 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
And I saw, in the right hand of Him Who was sitting on the throne, a book written within and on the back, sealed up 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 saying, as with a voice of thunder, "Come."