Then King Solomon summoned all the leaders of the tribes and clans of Israel to come to him in Jerusalem in order to take the Lord's Covenant Box from Zion, David's City, to the Temple. 1
References for 1 Kings 8:1
8.1 2 S 6.12-16; 1 Ch 15.25-29.
They all assembled during the Festival of Shelters in the seventh month, in the month of Ethanim. 2
References for 1 Kings 8:2
When all the leaders had gathered, the priests lifted the Covenant Box
and carried it to the Temple. The Levites and the priests also moved the Tent of the Lord's presence and all its equipment to the Temple.
King Solomon and all the people of Israel assembled in front of the Covenant Box and sacrificed a large number of sheep and cattle - too many to count.
Then the priests carried the Covenant Box into the Temple and put it in the Most Holy Place, beneath the winged creatures.