All the priests stand at their duties every day, offering over and over again the same sacrifices which are quite incapable of taking sins away. He, on the other hand, has offered one single sacrifice for sins, and then taken his place forever, at the right hand of God, where he is now waiting until his enemies are made into a footstool for him. By virtue of that one single offering, he has achieved the eternal perfection of all whom he is sanctifying. The Holy Spirit assures us of this; for he says, first:

This is the covenant I will make with them
when those days arrive;

and the Lord then goes on to say:

I will put my laws into their hearts
and write them on their minds.
I will never call their sins to mind,
or their offences.

When all sins have been forgiven, there can be no more sin offerings.

You are a priest for ever, a priest like Melchizedek of old.

The Lord’s revelation to my Master:
  ‘Sit on my right:
  your foes I will put beneath your feet.’

You are a priest for ever, a priest like Melchizedek of old.

The Lord will wield from Zion
  your sceptre of power:
  rule in the midst of all your foes.

You are a priest for ever, a priest like Melchizedek of old.

A prince from the day of your birth
  on the holy mountains;
  from the womb before the dawn I begot you.

You are a priest for ever, a priest like Melchizedek of old.

The Lord has sworn an oath he will not change.
  ‘You are a priest for ever,
  a priest like Melchizedek of old.’

You are a priest for ever, a priest like Melchizedek of old.

Alleluia, alleluia!
Speak, Lord, your servant is listening:
you have the message of eternal life.
Alleluia!