Leviticus 23:41

And let this feast be kept before the Lord for seven days in the year: it is a rule for ever from generation to generation; in the seventh month let it be kept.

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;

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.

Treasury of Scripture Knowledge

Summary

And ye shall keep it a feast unto the LORD seven days in the year. It shall be a statute for ever in your generations: ye shall celebrate it in the seventh month.

General references

Bible References

General references

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;
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.

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