Revelation 2:16

Therefore repent [change your inner self—your old way of thinking, your sinful behavior—seek God’s will]; or else I am coming to you quickly, and I will make war and fight against them with the sword of My mouth [in judgment].

2 Thessalonians 2:8

Then the lawless one [the Antichrist] will be revealed and the Lord Jesus will slay him with the breath of His mouth and bring him to an end by the appearance of His coming.

Revelation 2:5

So remember the heights from which you have fallen, and repent [change your inner self—your old way of thinking, your sinful behavior—seek God’s will] and do the works you did at first [when you first knew Me]; otherwise, I will visit you and remove your lampstand (the church, its impact) from its place—unless you repent.

Revelation 1:16

In His right hand He held seven stars, and from His mouth came a sharp two-edged sword [of judgment]; and His face [reflecting His majesty and the Shekinah glory] was like the sun shining in [all] its power [at midday].

Revelation 2:12

“And to the angel (divine messenger) of the church in Pergamum write:

“These are the words of Him who has and wields the sharp two-edged sword [in judgment]:

Isaiah 11:4


But with righteousness and justice He will judge the poor,
And decide with fairness for the downtrodden of the earth;
And He shall strike the earth with the rod of His mouth,
And with the breath of His lips He shall slay the wicked.

Isaiah 49:2


He has made My mouth like a sharp sword,
In the shadow of His hand He has kept Me hidden;
And He has made Me a sharpened arrow,
In His quiver He has hidden Me.

Acts 17:30-31

Therefore God overlooked and disregarded the former ages of ignorance; but now He commands all people everywhere to repent [that is, to change their old way of thinking, to regret their past sins, and to seek God’s purpose for their lives],

Ephesians 6:17

And take the helmet of salvation, and the sword of the Spirit, which is the Word of God.

Revelation 2:21-22

I gave her time to repent [to change her inner self and her sinful way of thinking], but she has no desire to repent of her immorality and refuses to do so.

Revelation 3:19

Those whom I [dearly and tenderly] love, I rebuke and discipline [showing them their faults and instructing them]; so be enthusiastic and repent [change your inner self—your old way of thinking, your sinful behavior—seek God’s will].

Revelation 16:9

People were [severely] burned by the great heat; and they reviled the name of God who has power over these plagues, but they did not repent [of their sin] and glorify Him.

Revelation 19:15

From His mouth comes a sharp sword (His word) with which He may strike down the nations, and He will rule them with a rod of iron; and He will tread the wine press of the fierce wrath of God, the Almighty [in judgment of the rebellious world].

Revelation 19:21

And the rest were killed with the sword which came from the mouth of Him who sat on the horse, and all the birds fed ravenously and gorged themselves with their flesh.

Revelation 22:7

“And behold, I am coming quickly. Blessed (happy, prosperous, to be admired) is the one who heeds and takes to heart and remembers the words of the prophecy [that is, the predictions, consolations, and warnings] contained in this book (scroll).”

Treasury of Scripture Knowledge

Summary

Repent; or else I will come unto thee quickly, and will fight against them with the sword of my mouth.

Bible References

Else

Revelation 2:5
So remember the heights from which you have fallen, and repent [change your inner self—your old way of thinking, your sinful behavior—seek God’s will] and do the works you did at first [when you first knew Me]; otherwise, I will visit you and remove your lampstand (the church, its impact) from its place—unless you repent.

Will fight

Revelation 2:12
“And to the angel (divine messenger) of the church in Pergamum write:

“These are the words of Him who has and wields the sharp two-edged sword [in judgment]:
Revelation 1:16
In His right hand He held seven stars, and from His mouth came a sharp two-edged sword [of judgment]; and His face [reflecting His majesty and the Shekinah glory] was like the sun shining in [all] its power [at midday].
Revelation 19:15
From His mouth comes a sharp sword (His word) with which He may strike down the nations, and He will rule them with a rod of iron; and He will tread the wine press of the fierce wrath of God, the Almighty [in judgment of the rebellious world].
Isaiah 11:4

But with righteousness and justice He will judge the poor,
And decide with fairness for the downtrodden of the earth;
And He shall strike the earth with the rod of His mouth,
And with the breath of His lips He shall slay the wicked.
Isaiah 49:2

He has made My mouth like a sharp sword,
In the shadow of His hand He has kept Me hidden;
And He has made Me a sharpened arrow,
In His quiver He has hidden Me.
Ephesians 6:17
And take the helmet of salvation, and the sword of the Spirit, which is the Word of God.
2 Thessalonians 2:8
Then the lawless one [the Antichrist] will be revealed and the Lord Jesus will slay him with the breath of His mouth and bring him to an end by the appearance of His coming.