'Army' in the 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.

And after Ahithophel was Jehoiada the son of Benaiah, and Abiathar: and the general of the king's army was Joab.