So he took his people, divided them into three columns, and lay in ambush in the field. When he looked and saw the people were coming out of the city, he pounced on them and struck them down.
Then David sent out the troops, one third under the command of Joab, one third under the command of Joab’s brother Abishai son of Zeruiah, and one third under the command of Ittai the Gittite. The king said to the troops, “I must certainly go out with you also.”
Then Abimelech and the column that was with him rushed forward and stood at the entrance of the city gate, and the other two columns rushed on all who were in the open field and struck them down.
So it was on the following day that Saul divided the people into three columns; they penetrated into the midst of the camp at the morning watch and struck down the Ammonites until the heat of day. It came about that the survivors were scattered, so that no two of them were left together.