So he took the people and divided them into three companies, and they laid in wait in the field. When the people came out from the city, he rose up against them and struck them down.
Then David dispatched the people, one-third under the command of Joab, one-third under the command of Abishai the son of Zeruiah and brother of Joab, and one-third under the command of Ittai the Gittite. Then David said to the people, “I myself will go out with you.”
Abimelech and the company that was with him rushed forward and stood at the entrance of the city gate. The two other combat units attacked everyone in the field and struck them down.
On the next day Saul put the people in three companies. And they came into the midst of the camp in the morning and struck down the Ammonites until the heat of the day. Those surviving were scattered, so that even two of them were not left together.