2 Chronicles 5:3
All the men of Israel assembled in front of the king during the Festival of Tents that takes place in the seventh month of the year.
1 Kings 8:2
So all the men gathered together to meet with King Solomon at the Festival of Tents in the month Ethanim, the seventh month.
2 Chronicles 7:8-10
At that time Solomon also held a week-long festival attended by all of Israel. The assembly was very large, and included people from as far away as Lebo-hamath to the Wadi of Egypt.
Leviticus 23:34-36
"Tell the Israelis that starting the fifteenth day of this seventh month is the week-long Festival of Tents to the LORD.