After the death of Joshua - But from Judges 1:1 to Judges 2:9 is a consecutive narrative, ending with the death of Joshua. Hence, the events in this chapter and in Judges 2:1-6 are to be taken as belonging to the lifetime of Joshua. See Judges 2:11 note.
Asked the Lord - The phrase is only found in Judges and Samuel. It was the privilege of the civil ruler, to apply to the high priest to consult for him the Urim and Thummim (marginal reference). (Compare Joshua 14:1; Joshua 18:1, Joshua 18:10; Joshua 19:51). Here it was not Phinehas, as Josephus concludes from placing these events after the death of Joshua, but Eleazar, through whom the children of Israel inquired “who” (or, rather), “which tribe of us shall go up!”