Leviticus 23:41

And ye shall celebrate it as a feast to Jehovah seven days in the year: it is an everlasting statute throughout your generations; in the seventh month shall ye celebrate it.

Numbers 29:12

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

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 observed the feast seven days; and on the eighth day was a solemn assembly, according to the ordinance.

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 ye shall have a holy convocation: no manner of servile work shall ye do; and ye shall celebrate a feast to Jehovah seven days;
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 observed the feast seven days; and on the eighth day was a solemn assembly, according to the ordinance.