Judges 21:19

‘ And they said, ‘Look there is a feast of Yahweh from year to year in Shiloh', which is on the north of Bethel, on the east side of the highway that goes up from Bethel to Shechem, and on the South of Lebonah.'

They expressed their awareness of a coming feast of Yahweh.The connection with vineyards suggests that this was the feast of Tabernacles. All Israel would gather to the central sanctuary for the feast to celebrate the harvest and it would provide opportunity for their plan to work. The position of Shiloh was carefully described. It was an important site to Israel, and it would seem that the Tabernacle had again returned there.