To Shiloh - Whither, as the usual place of meeting for the national assembly, the Israelites had moved from Bethel (a distance of about 10 miles), during the expedition of the 12,000 to Jabesh-Gilead.
SDA Bible Commentary (limited)
Volume 1-7
12. Four hundred. They lacked 200 of having enough for the 600 Benjamites who were still alive in the caves.
Shiloh. See on vs.2, 4; ch.20:18. The camp may have removed to Shiloh shortly after the conclusion of hostilities with Benjamin.