But this we will do in common against Gabaa:

But now this is what we will do to Gib'e-ah: we will go up against it by lot,

But this is what we will do to Gibeah: we will go up against it by the decision of the Lord;

But this we shall do in common against Gibeah:

By lot - To determine who should go up first Judges 20:18. The shape of the ground probably made it impossible for the whole force to operate at once; and the question of spoil would have something to do with the arrangement. (Compare 1-Samuel 30:22-25.)

But now this shall be the thing which we will do to Gibeah,.... Where the fact was done; what follows was proposed by some, and unanimously agreed to by all:
we will go up by lot against it; cast lots who shall go up to it and demand satisfaction for the offence committed; and if denied, to act in an hostile manner against it.