It was a perfect sacrifice by a perfect person to perfect some very imperfect people. By that single offering, he did everything that needed to be done for everyone who takes part in the purifying process. The Holy Spirit confirms this:

This new plan I’m making with Israel

isn’t going to be written on paper,

isn’t going to be chiseled in stone;

This time “I’m writing out the plan in them,

carving it on the lining of their hearts.”

He concludes,

I’ll forever wipe the slate clean of their sins.

Once sins are taken care of for good, there’s no longer any need to offer sacrifices for them.

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In other versions

ESVEnglish Standard Version

For by a single offering he has perfected for all time those who are being sanctified.

And the Holy Spirit also bears witness to us; for after saying,

“This is the covenant that I will make with them

after those days, declares the Lord:

I will put my laws on their hearts,

and write them on their minds,”

then he adds,

“I will remember their sins and their lawless deeds no more.”

Where there is forgiveness of these, there is no longer any offering for sin.

NIVNew International Version (2011)

For by one sacrifice he has made perfect forever those who are being made holy.

The Holy Spirit also testifies to us about this. First he says:

“This is the covenant I will make with them

after that time, says the Lord.

I will put my laws in their hearts,

and I will write them on their minds.”

Then he adds:

“Their sins and lawless acts

I will remember no more.”

And where these have been forgiven, sacrifice for sin is no longer necessary.

CSBChristian Standard Bible

For by one offering he has perfected forever those who are sanctified. The Holy Spirit also testifies to us about this. For after he says:

This is the covenant I will make with them

after those days,

the Lord says,

I will put my laws on their hearts

and write them on their minds,

and I will never again remember

their sins and their lawless acts.

Now where there is forgiveness of these, there is no longer an offering for sin.

NLTNew Living Translation

For by that one offering he forever made perfect those who are being made holy.

And the Holy Spirit also testifies that this is so. For he says,

“This is the new covenant I will make

with my people on that day, says the Lord:

I will put my laws in their hearts,

and I will write them on their minds.”

Then he says,

“I will never again remember

their sins and lawless deeds.”

And when sins have been forgiven, there is no need to offer any more sacrifices.

LEBThe Lexham English Bible

For by one offering he has perfected for all time those who are made holy. And the Holy Spirit also testifies to us, for after saying,

“This is the covenant that I will decree for them

after those days, says the Lord:

I am putting my laws on their hearts,

and I will write them on their minds.”

He also says,

“Their sins and their lawless deeds I will never remember again.”

Now where there is forgiveness of these, there is no longer an offering for sin.

KJV 1900King James Version

For by one offering he hath perfected for ever them that are sanctified. Whereof the Holy Ghost also is a witness to us: for after that he had said before, This is the covenant that I will make with them after those days, saith the Lord, I will put my laws into their hearts, and in their minds will I write them; And their sins and iniquities will I remember no more. Now where remission of these is, there is no more offering for sin.

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