New Revised Standard Version
Repent then. If not, I will come to you soon and make war against them with the sword of my mouth.

Contemporary English Version
Turn back! If you don't, I will come quickly and fight against these people. And my words will cut like a sword.

New American Bible
Therefore, repent. Otherwise, I will come to you quickly and wage war against them with the sword of my mouth.

Douay-Rheims Bible
In like manner do penance. If not, I will come to thee quickly and will fight against them with the sword of my mouth.

In like manner do penance. If not, I will come to thee quickly and will fight against them with the sword of my mouth.

Repent.

Revelation 2:5,21,22 Be mindful therefore from whence thou art fallen: and do penance and do the first works. Or else I come to thee and will move thy candlestick out of its place, except thou do penance. . . .

Revelation 3:19 Such as I love, I rebuke and chastise. Be zealous therefore and do penance.

Revelation 16:9 And men were scorched with great heat: and they blasphemed the name of God, who hath power over these plagues. Neither did they penance to give him glory.

Acts 17:30,31 And God indeed having winked at the times of this ignorance, now declareth unto men that all should every where do penance. . . .

else.

Revelation 2:5 Be mindful therefore from whence thou art fallen: and do penance and do the first works. Or else I come to thee and will move thy candlestick out of its place, except thou do penance.

will fight.

Revelation 2:12 And to the angel of the church of Pergamus write: These things saith he that hath the sharp two-edged sword:

Revelation 1:16 And he had in his right hand seven stars. And from his mouth came out a sharp two-edged sword. And his face was as the sun shineth in his power.

Revelation 19:15,21 And out of his mouth proceedeth a sharp two-edged sword, that with it he may strike the nations. And he shall rule them with a rod of iron: and he treadeth the winepress of the fierceness of the wrath of God the Almighty. . . .

Isaiah 11:4 But he shall judge the poor with justice, and shall reprove with equity the meek 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 And he hath made my mouth like a sharp sword: in the shadow of his hand he hath protected me, and hath made me as a chosen arrow: in his quiver he hath hidden me.

Ephesians 6:17 And take unto you the helmet of salvation and the sword of the Spirit (which is the word of God).

2 Thessalonians 2:8 And then that wicked one shall be revealed: whom the Lord Jesus shall kill with the spirit of his mouth and shall destroy with the brightness of his coming: him