New American Standard Bible (©1995)
Then it happened in the spring, at the time when kings go out to battle, that Joab led out the army and ravaged the land of the sons of Ammon, and came and besieged Rabbah. But David stayed at Jerusalem. And Joab struck Rabbah and overthrew it.

King James Bible
And it came to pass, that after the year was expired, at the time that kings go out to battle, Joab led forth the power of the army, and wasted the country of the children of Ammon, and came and besieged Rabbah. But David tarried at Jerusalem. And Joab smote Rabbah, and destroyed it.

Darby Bible Translation
And it came to pass at the time of the return of the year, at the time when kings go forth, that Joab led forth the power of the army, and laid waste the land of the children of Ammon, and came and besieged Rabbah. But David abode at Jerusalem. And Joab smote Rabbah, and overthrew it.

English Revised Version
And it came to pass, at the time of the return of the year, at the time when kings go out to battle, that Joab led forth the power of the army, and wasted the country of the children of Ammon, and came and besieged Rabbah. But David tarried at Jerusalem. And Joab smote Rabbah, and overthrew it.

Online Parallel Bible