Ambrose of Milan
Under the guise of retreating their primary forces, they executed a nighttime ambush on the opposite side of the city where the soldiers were positioned.
And the children of Israel set ambushes round about the city of Gabaa:
וַיָּ֤שֶׂם יִשְׂרָאֵל֙ אֹֽרְבִ֔ים אֶל־הַגִּבְעָ֖ה סָבִֽיב׃
One Church Father comments on this verse
Under the guise of retreating their primary forces, they executed a nighttime ambush on the opposite side of the city where the soldiers were positioned.
Passages read together with this verse.