Numbers 29:35

On the eighth day let there be a holy meeting: you may do no field-work;

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

John 7:37-39

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.

Revelation 7:9-17

After these things I saw a great army of people more than might be numbered, out of every nation and of all tribes and peoples and languages, taking their places before the high seat and before the Lamb, dressed in white robes, and with branches in their hands,

Treasury of Scripture Knowledge

Summary

On the eighth day ye shall have a solemn assembly: ye shall do no servile work therein:

Bible References

Eighth day

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.
Revelation 7:9
After these things I saw a great army of people more than might be numbered, out of every nation and of all tribes and peoples and languages, taking their places before the high seat and before the Lamb, dressed in white robes, and with branches in their hands,

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