The children of Israel rose up in the morning, and encamped against Gibeah.
"They wept before Jehovah until even"  (Judges 20:23).  It is a mistake to envision these two battles as being fought on successive days.  This mention of the Israelites weeping before Jehovah until evening probably refers to an entire day, during which they again consulted Jehovah through the High Priest Phinehas at Bethel, continuing their mourning until evening.