Revelation 2:16

Repent therefore---if not, I will come unto thee quickly, and will fight against them with the sword that goeth out of my mouth.

2 Thessalonians 2:8

And then the wicked one shall be detected, whom the Lord will destroy by the breath of his mouth, and abolish by the brightness of his coming:

Revelation 2:5

Remember therefore from whence thou art fallen, and repent, and do the first works: else I will come unto thee quickly, and will remove thy candlestick out of its place, if thou repent not.

Revelation 1:16

and He had in his right hand seven stars, and out of his mouth went a sharp two-edged sword: and his countenance was as the sun when he shineth in his strength.

Revelation 2:12

And to the angel of the church in Pergamos write, These things saith He, who hath the sharp two-edged sword;

Acts 17:30-31

Wherefore though God overlooked the times of this ignorance, He now requireth all men every where to repent.

Ephesians 6:17

take also the helmet of salvation, and the sword of the Spirit, which is the word of God:

Revelation 2:21-22

And I gave her time to repent of her fornication, and she repented not.

Revelation 3:19

Whomsoever I love, I reprove and chasten: be zealous therefore and repent.

Revelation 16:9

And men were scorched with great heat, and they blasphemed the name of God, who hath power over these plagues, and they repented not to give Him glory.

Revelation 19:15

And out of his mouth goeth a sharp sword, that He may smite the nations therewith: and He shall rule them with a rod of iron: and He treadeth the wine-press of the indignation and wrath of God almighty.

Revelation 19:21

And the rest were slain with the sword of Him that sitteth upon the horse, the sword that cometh out of his mouth: and all the fowls of heaven were satiated with their flesh.

Revelation 22:7

For behold I come quickly: happy is he that keepeth the words of the prophecy of this book.

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
Remember therefore from whence thou art fallen, and repent, and do the first works: else I will come unto thee quickly, and will remove thy candlestick out of its place, if thou repent not.

Will fight

Revelation 2:12
And to the angel of the church in Pergamos write, These things saith He, who hath the sharp two-edged sword;
Revelation 1:16
and He had in his right hand seven stars, and out of his mouth went a sharp two-edged sword: and his countenance was as the sun when he shineth in his strength.
Revelation 19:15
And out of his mouth goeth a sharp sword, that He may smite the nations therewith: and He shall rule them with a rod of iron: and He treadeth the wine-press of the indignation and wrath of God almighty.
Ephesians 6:17
take also the helmet of salvation, and the sword of the Spirit, which is the word of God:
2 Thessalonians 2:8
And then the wicked one shall be detected, whom the Lord will destroy by the breath of his mouth, and abolish by the brightness of his coming: