Charles Ellicott Commentary Judges 20:3

"(Now the children of Benjamin heard that the children of Israel were gone up to Mizpah.) And the children of Israel said, Tell us, how was this wickedness brought to pass?" — Judges 20:3 (ASV)

Heard. —Probably the Benjamites had received the same summons as the other tribes , but insolently refused to notice the summons.

Tell us.—Literally, You tell us. The request is addressed to any who could give the necessary information.