Revelation 1:16

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

Revelation 2:16

Reform, or otherwise, I will come to you quickly, and I will fight against them with the sword of my mouth.

Revelation 9:15

And the four angels were loosed, who were prepared for an hour, and a day, and a month, and a year, to kill a third part of men.

Revelation 9:21

And they reformed not from their murders, and their magical incantations; nor from their fornication, nor their thefts.

Treasury of Scripture Knowledge

Summary

Therefore have I hewed them by the prophets; I have slain them by the words of my mouth: and thy judgments are as the light that goeth forth.

Bible References

I have

Revelation 1:16
and he had in his right hand seven stars, and out of his mouth there went a sharp two-edged sword; and his countenance was as the sun, when he shines in his strength.
Revelation 2:16
Reform, or otherwise, I will come to you quickly, and I will fight against them with the sword of my mouth.
Revelation 9:15
And the four angels were loosed, who were prepared for an hour, and a day, and a month, and a year, to kill a third part of men.