Judges 20:30

30 And the children of Israel went up against the children of Benjamin on the third day, and arrayed themselves against Gabaa as before.

Judges 20:30 Meaning and Commentary

Judges 20:30

And the children of Israel went up against the children of
Benjamin on the third day
Not the day following the second battle, since it would take more time to go to Shiloh, and fast and offer sacrifices there, but on the third day from the second battle:

and put themselves in array against Gibeah, as at other times;
as they had done on the first and second days of battle.

Judges 20:30 In-Context

28 and Phinees the son of Eleazar the son of Aaron stood before it in those days; and the children of Israel enquired of the Lord, saying, Shall we yet again go forth to fight with our brethren the sons of Benjamin? and the Lord said, Go up, to-morrow I will give them into your hands.
29 And the children of Israel set an ambush against Gabaa round about .
30 And the children of Israel went up against the children of Benjamin on the third day, and arrayed themselves against Gabaa as before.
31 And the children of Benjamin went out to meet the people, and were all drawn out of the city, and began to smite and slay the people as before in the roads, whereof one goes up to Baethel, and one to Gabaa in the field, about thirty men of Israel.
32 And the children of Benjamin said, They fall before us as at the first: but the children of Israel said, Let us flee, and draw them out from the city into the roads; and they did so.

The Brenton translation of the Septuagint is in the public domain.