Leviticus 16:34

And let this be an order for ever for you, so that the sin of the children of Israel may be taken away once every year. And he did as the Lord gave orders to Moses.

Hebrews 9:7

But only the high priest went into the second, once a year, not without making an offering of blood for himself and for the errors of the people:

Hebrews 9:25

And he did not have to make an offering of himself again and again, as the high priest goes into the holy place every year with blood which is not his;

Exodus 30:10

And once every year Aaron is to make its horns clean: with the blood of the sin-offering he is to make it clean once every year from generation to generation: it is most holy to the Lord.

Leviticus 23:31

You may not do any sort of work: this is an order for ever through all your generations wherever you may be living.

Numbers 29:7

And on the tenth day of this seventh month there will be a holy meeting; keep yourselves from pleasure, and do no sort of work;

Hebrews 10:3

But year by year there is a memory of sins in those offerings.

Hebrews 10:14

Because by one offering he has made complete for ever those who are made holy.

Treasury of Scripture Knowledge

Summary

And this shall be an everlasting statute unto you, to make an atonement for the children of Israel for all their sins once a year. And he did as the LORD commanded Moses.

An everlasting

General references

Bible References

An everlasting

Leviticus 23:31
You may not do any sort of work: this is an order for ever through all your generations wherever you may be living.
Numbers 29:7
And on the tenth day of this seventh month there will be a holy meeting; keep yourselves from pleasure, and do no sort of work;

Once a year

Exodus 30:10
And once every year Aaron is to make its horns clean: with the blood of the sin-offering he is to make it clean once every year from generation to generation: it is most holy to the Lord.
Hebrews 9:7
But only the high priest went into the second, once a year, not without making an offering of blood for himself and for the errors of the people:
Hebrews 10:3
But year by year there is a memory of sins in those offerings.

General references

Leviticus 23:28
And on that day you may do no sort of work, for it is a day of taking away sin, to make you clean before the Lord your God.

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