2 Chronicles 7:9

And they will do in the eighth day a restraint: for they did the consecration of the altar, seven days; and the festival, seven days.

Leviticus 23:36

Seven days shall ye bring a sacrifice to Jehovah; in the eighth day a holy calling shall be to you, and bring ye a sacrifice to Jehovah: it is a restraining: any work of labor ye shall not do.

Deuteronomy 16:8

Six days shalt thou eat unleavened, and in the seventh day an enclosing to Jehovah thy God: thou shalt not do work.

1 Kings 8:65

And Solomon will make the festival in that day, and all Israel with him, a great convocation from the going in of Hamath even to the torrent of Egypt, before Jehovah our God seven days and seven days, fourteen days.

2 Chronicles 30:23

And all the convocation will take counsel to do other seven days: and they will do seven days with gladness.

Nehemiah 8:18

And he will read in the book of the law of God day by day, from the first day even to the last day. And they will do a festival seven days; and in the eighth day a restraint according to judgment

Joel 1:14

Consecrate a fast., call an assembly, gather together the old men, all the inhabitants of the land to the house of Jehovah your God, and cry to Jehovah.

Treasury of Scripture Knowledge

Summary

And in the eighth day they made a solemn assembly: for they kept the dedication of the altar seven days, and the feast seven days.

General references

Bible References

Solemn assembly

Leviticus 23:36
Seven days shall ye bring a sacrifice to Jehovah; in the eighth day a holy calling shall be to you, and bring ye a sacrifice to Jehovah: it is a restraining: any work of labor ye shall not do.
Deuteronomy 16:8
Six days shalt thou eat unleavened, and in the seventh day an enclosing to Jehovah thy God: thou shalt not do work.
Nehemiah 8:18
And he will read in the book of the law of God day by day, from the first day even to the last day. And they will do a festival seven days; and in the eighth day a restraint according to judgment
Joel 1:14
Consecrate a fast., call an assembly, gather together the old men, all the inhabitants of the land to the house of Jehovah your God, and cry to Jehovah.

General references

John 7:2
And the festival of the Jews was near, the Pitching of tents.