2 Chronicles 5:3
And all the men of Israel assembled before the king at the feast that is in the seventh month.
1 Kings 8:2
And all the men of Israel assembled to King Solomon at the feast in the month Ethanim, which is the seventh month.
2 Chronicles 7:8-10
At that time Solomon held the feast for seven days, and all Israel with him, a very great assembly, from Lebo-hamath to the Brook of Egypt.
Leviticus 23:34-36
"Speak to the people of Israel, saying, On the fifteenth day of this seventh month and for seven days is the Feast of Booths to the LORD.