Revelation 2:12

"To the messenger of the church in Pergamum write: 'The One who is wielding the sharp, double-edged sword speaks as follows:

Revelation 1:16

In His right hand He was holding seven stars, and a sharp, double-edged sword was coming out of His mouth, and His face was shining like the sun at midday.

Revelation 1:11

"Write what you see in a book and send it to the seven churches, to Ephesus, Smyrna, Pergamum, Thyatira, Sardis, Philadelphia, and Laodicea."

Revelation 2:16

So repent, or else I will quickly come and make war upon them with the sword that comes from my mouth.

Hebrews 4:12

For God's message is alive and full of power in action, sharper than any double-edged sword, piercing even to the depths of soul and spirit, to the dividing of joints and marrow, and passing judgment on the thoughts and purposes of the heart.

Revelation 2:1

"To the messenger of the church in Ephesus write: 'The One who is holding the seven stars in His right hand and is walking among the golden lampstands speaks as follows:

Revelation 19:15

From His mouth shot a sharp sword, so that He could smite the nations with it. He will rule them with a scepter of iron, and will tread the wine press of the raging wrath of the Almighty God.

Revelation 19:21

The rest were killed with the sword that shot from the mouth of the horse's Rider, and all the birds were gorged with their flesh.

Treasury of Scripture Knowledge

Summary

And to the angel of the church in Pergamos write; These things saith he which hath the sharp sword with two edges;

Bible References

The angel

Revelation 2:1
"To the messenger of the church in Ephesus write: 'The One who is holding the seven stars in His right hand and is walking among the golden lampstands speaks as follows:
Revelation 1:11
"Write what you see in a book and send it to the seven churches, to Ephesus, Smyrna, Pergamum, Thyatira, Sardis, Philadelphia, and Laodicea."

Which hath

Revelation 2:16
So repent, or else I will quickly come and make war upon them with the sword that comes from my mouth.
Revelation 1:16
In His right hand He was holding seven stars, and a sharp, double-edged sword was coming out of His mouth, and His face was shining like the sun at midday.
Revelation 19:15
From His mouth shot a sharp sword, so that He could smite the nations with it. He will rule them with a scepter of iron, and will tread the wine press of the raging wrath of the Almighty God.
Hebrews 4:12
For God's message is alive and full of power in action, sharper than any double-edged sword, piercing even to the depths of soul and spirit, to the dividing of joints and marrow, and passing judgment on the thoughts and purposes of the heart.