Revelation 2:16

See, then, that you have a change of heart; or I will come to you quickly, and will make war against them with the sword of my mouth.

2 Thessalonians 2:8

And then will come the revelation of that evil one, whom the Lord Jesus will put to death with the breath of his mouth, and give to destruction by the revelation of his coming;

Revelation 2:5

So keep in mind where you were at first, and be changed in heart and do the first works; or I will come to you, and will take away your light from its place, if your hearts are not changed.

Revelation 1:16

And he had in his right hand seven stars: and out of his mouth came a sharp two-edged sword: and his face was like the sun shining in its strength.

Revelation 2:12

And to the angel of the church in Pergamos say: These things says he who has the sharp two-edged sword:

Isaiah 11:4

But he will do right in the cause of the poor, and give wise decisions for those in the land who are in need; and the rod of his mouth will come down on the cruel, and with the breath of his lips he will put an end to the evil-doer.

Isaiah 49:2

And he has made my mouth like a sharp sword, in the shade of his hand he has kept me; and he has made me like a polished arrow, keeping me in his secret place;

Acts 17:30-31

Those times when men had no knowledge were overlooked by God; but now he gives orders to all men in every place to undergo a change of heart:

Ephesians 6:17

And take salvation for your head-dress and the sword of the Spirit, which is the word of God:

Revelation 2:21-22

And I gave her time for a change of heart, but she has no mind to give up her unclean ways.

Revelation 3:19

To all those who are dear to me, I give sharp words and punishment: then with all your heart have sorrow for your evil ways.

Revelation 16:9

And men were burned with great heat: and they said evil things against the name of the God who has authority over these punishments; and they were not turned from their evil ways to give him glory.

Revelation 19:15

And out of his mouth comes a sharp sword, with which he overcomes the nations: and he has rule over them with a rod of iron: and he is crushing with his feet the grapes of the strong wrath of God the Ruler of all.

Revelation 19:21

And the rest were put to death with the sword of him who was on the horse, even the sword which came out of his mouth: and all the birds were made full with their flesh.

Revelation 22:7

See, I come quickly. A blessing on him who keeps the words of this book of the prophet.

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 keep in mind where you were at first, and be changed in heart and do the first works; or I will come to you, and will take away your light from its place, if your hearts are not changed.

Will fight

Revelation 2:12
And to the angel of the church in Pergamos say: These things says he who has the sharp two-edged sword:
Revelation 1:16
And he had in his right hand seven stars: and out of his mouth came a sharp two-edged sword: and his face was like the sun shining in its strength.
Revelation 19:15
And out of his mouth comes a sharp sword, with which he overcomes the nations: and he has rule over them with a rod of iron: and he is crushing with his feet the grapes of the strong wrath of God the Ruler of all.
Isaiah 11:4
But he will do right in the cause of the poor, and give wise decisions for those in the land who are in need; and the rod of his mouth will come down on the cruel, and with the breath of his lips he will put an end to the evil-doer.
Isaiah 49:2
And he has made my mouth like a sharp sword, in the shade of his hand he has kept me; and he has made me like a polished arrow, keeping me in his secret place;
Ephesians 6:17
And take salvation for your head-dress and the sword of the Spirit, which is the word of God:
2 Thessalonians 2:8
And then will come the revelation of that evil one, whom the Lord Jesus will put to death with the breath of his mouth, and give to destruction by the revelation of his coming;

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain