‘So the children of Benjamin saw that they were smitten.'
A summary of the situation. Benjamin now became aware that their end was near. It conveyed to the listeners, who were hearing the account read, the turning point in the battle. This will now be followed by a further description of the action from a slightly different perspective, including more detailed description of other parts of the action.
‘For the men of Israel gave place to Benjamin, because they trusted to the liers in wait whom they had set against Gibeah.'
This was part of the explanation for the pretended flight. It also nullified the slingers and drew the Benjaminites into an ambush. But this was introductory to the actions of the liers in wait and therefore concentrated on their part.