Leviticus 23:36

Every day for seven days give an offering made by fire to the Lord; and on the eighth day there is to be a holy meeting, when you are to give an offering made by fire to the Lord; this is a special holy day: you may do no field-work on that day

Nehemiah 8:18

And day by day, from the first day till the last, he was reading from the book of the law of God. And they kept the feast for seven days: and on the eighth day there was a holy meeting, as it is ordered in the law.

John 7:37

On the last day, the great day of the feast, Jesus got up and said in a loud voice, If any man is in need of drink let him come to me and I will give it to him.

Numbers 29:12-38

And on the fifteenth day of the seventh month let there be a holy meeting; do no field-work, and keep a feast to the Lord for seven days;

Deuteronomy 16:8

For six days let your food be unleavened bread; and on the seventh day there is to be a holy meeting to the Lord your God; no work is to be done.

Joel 1:14

Let a time be fixed for going without food, have a holy meeting, let the old men, even all the people of the land, come together to the house of the Lord your God, crying out to the Lord.

Joel 2:15

Let a horn be sounded in Zion, let a time be fixed for going without food, have a holy meeting:

2 Chronicles 7:8-11

So Solomon kept the feast at that time for seven days, and all Israel with him, a very great meeting, for the people had come together from the way into Hamath and from as far as 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 let there be a holy meeting; do no field-work, and keep a feast to the Lord for seven days;

The eighth

2 Chronicles 7:8
So Solomon kept the feast at that time for seven days, and all Israel with him, a very great meeting, for the people had come together from the way into Hamath and from as far as the river of Egypt.
Nehemiah 8:18
And day by day, from the first day till the last, he was reading from the book of the law of God. And they kept the feast for seven days: and on the eighth day there was a holy meeting, as it is ordered in the law.
John 7:37
On the last day, the great day of the feast, Jesus got up and said in a loud voice, If any man is in need of drink let him come to me and I will give it to him.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain