Leviticus 23:36

Seven days ye shall offer an offering made by fire to the LORD: on the eighth day shall be a holy convocation to you, and ye shall offer an offering made by fire to the LORD: it is a solemn assembly; and ye shall do no servile work in it.

Nehemiah 8:18

Also day by day, from the first day to the last day, he read in the book of the law of God. And they kept the feast seven days; and on the eighth day was a solemn assembly, according to the manner.

John 7:37

In the last day, that great day of the feast, Jesus stood and cried, saying, If any man thirsteth, let him come to me, and drink.

Numbers 29:12-38

And on the fifteenth day of the seventh month ye shall have a holy convocation; ye shall do no servile work, and ye shall keep a feast to the LORD seven days:

Deuteronomy 16:8

Six days thou shalt eat unleavened bread: and on the seventh day shall be a solemn assembly to the LORD thy God: in it thou shalt do no work.

Joel 1:14

Sanctify ye a fast, call a solemn assembly, gather the elders and all the inhabitants of the land into the house of the LORD your God, and cry to the LORD,

Joel 2:15

Blow the trumpet in Zion, sanctify a fast, call a solemn assembly:

2 Chronicles 7:8-11

Also at the same time Solomon kept the feast seven days, and all Israel with him, a very great congregation, from the entrance of Hamath to the river of Egypt.

Treasury of Scripture Knowledge

Summary

Seven days ye shall offer an offering made by fire unto the LORD: on the eighth day shall be an holy convocation unto you; and ye shall offer an offering made by fire unto the LORD: it is a solemn assembly; and ye shall do no servile work therein.

Bible References

Seven

Numbers 29:12
And on the fifteenth day of the seventh month ye shall have a holy convocation; ye shall do no servile work, and ye shall keep a feast to the LORD seven days:

The eighth

2 Chronicles 7:8
Also at the same time Solomon kept the feast seven days, and all Israel with him, a very great congregation, from the entrance of Hamath to the river of Egypt.
Nehemiah 8:18
Also day by day, from the first day to the last day, he read in the book of the law of God. And they kept the feast seven days; and on the eighth day was a solemn assembly, according to the manner.
John 7:37
In the last day, that great day of the feast, Jesus stood and cried, saying, If any man thirsteth, let him come to me, and drink.