Berean Standard Bible (BSB)
Therefore repent! Otherwise I will come to you shortly and wage war against them with the sword of My mouth.
World English Bible (WEB)
Repent therefore, or else I am coming to you quickly, and I will make war against them with the sword of my mouth.
Strong's King James
Repent{G3340}{(G5657)}; or else{G1490} I will come{G2064}{(G5736)} unto thee{G4671} quickly{G5035}, and{G2532} will fight{G4170}{(G5692)} against{G3326} them{G846} with{G1722} the sword{G4501} of my{G3450} mouth{G4750}.
The F.O.G *
(16) Therefore return, but if not, I'm coming to you quickly and I will battle against them in the sword of My mouth.
The F.O.G Message *
Young's Literal Translation
‘Reform! and if not, I come to thee quickly, and will fight against them with the sword of my mouth.