Revelation 1:4

John to the seven churches that are in Asia, grace be to you and peace from him who is, and who was, and who is to come; and from the seven spirits which are before his throne;

Revelation 1:20

the mystery of the seven stars which you saw in my right hand, and the seven golden candlesticks. The seven stars are the angels of the seven churches; and the seven candle sticks are the seven churches.

Revelation 5:1

And I saw in the right hand of him that sits on the throne, a book written within and without, sealed with seven seals.

Revelation 5:6

And I saw, in the midst of the throne, and of the four living creatures, and in the midst of the elders, a Lamb standing, like one that had been slain, having seven horns and seven eyes, which are the seven spirits of God that are sent into all the earth.

Revelation 8:2

And I saw the seven angels that stood before God, and seven trumpets were given to them.

Revelation 8:6

And the seven angels that had the seven trumpets prepared themselves to sound.

Revelation 10:3

and he cried with a loud voice, as when a lion roars: and when he had cried, the seven thunders uttered their voices.

Revelation 15:1

And I saw another sign in heaven, great and wonderful: seven angels that had seven plagues which are the last; for by them the wrath of God is brought to an end.

Revelation 15:7

And one of the four living creatures gave to the seven angels seven golden cups full of the wrath of God, who lives from age to age.

Revelation 16:1

And I heard a great voice out of the temple, saying to the seven angels: Go and pour out the seven cups of the wrath of God upon the earth.

Treasury of Scripture Knowledge

Summary

And seven priests shall bear before the ark seven trumpets of rams' horns: and the seventh day ye shall compass the city seven times, and the priests shall blow with the trumpets.

Bible References

Seven times

Revelation 1:4
John to the seven churches that are in Asia, grace be to you and peace from him who is, and who was, and who is to come; and from the seven spirits which are before his throne;
Revelation 5:1
And I saw in the right hand of him that sits on the throne, a book written within and without, sealed with seven seals.
Revelation 8:2
And I saw the seven angels that stood before God, and seven trumpets were given to them.
Revelation 10:3
and he cried with a loud voice, as when a lion roars: and when he had cried, the seven thunders uttered their voices.
Revelation 15:1
And I saw another sign in heaven, great and wonderful: seven angels that had seven plagues which are the last; for by them the wrath of God is brought to an end.
Revelation 16:1
And I heard a great voice out of the temple, saying to the seven angels: Go and pour out the seven cups of the wrath of God upon the earth.