We have seen that Christ has been given a ministry of a far higher order, and to the same degree it is a better covenant of which he is the mediator, founded on better promises. If that first covenant had been without a fault, there would have been no need for a second one to replace it. And in fact God does find fault with them; he says:

See, the days are coming – it is the Lord who speaks –
when I will establish a new covenant
with the House of Israel and the House of Judah,
but not a covenant like the one I made with their ancestors
on the day I took them by the hand
to bring them out of the land of Egypt.
They abandoned that covenant of mine,
and so I on my side deserted them. It is the Lord who speaks.
No, this is the covenant I will make
with the House of Israel
when those days arrive – it is the Lord who speaks.
I will put my laws into their minds
and write them on their hearts.
Then I will be their God
and they shall be my people.
There will be no further need for neighbour to try to teach neighbour,
or brother to say to brother,
‘Learn to know the Lord.’
No, they will all know me,
the least no less than the greatest,
since I will forgive their iniquities
and never call their sins to mind.

By speaking of a new covenant, he implies that the first one is already old. Now anything old only gets more antiquated until in the end it disappears.

Mercy and faithfulness have met.

Let us see, O Lord, your mercy
  and give us your saving help.
His help is near for those who fear him
  and his glory will dwell in our land.

Mercy and faithfulness have met.

Mercy and faithfulness have met;
  justice and peace have embraced.
Faithfulness shall spring from the earth
  and justice look down from heaven.

Mercy and faithfulness have met.

The Lord will make us prosper
  and our earth shall yield its fruit.
Justice shall march before him
  and peace shall follow his steps.

Mercy and faithfulness have met.

Alleluia, alleluia!
Through the Good News God called us
to share the glory of our Lord Jesus Christ.
Alleluia!