Hebrews 7:22

so much the more Jesus has become the guarantee of a better covenant.

Matthew 26:28

for this is my blood which ratifies the covenant, the blood which is to be poured out for many for the forgiveness of their sins.

Mark 14:24

Then He said to them, "This is my blood which ratifies the covenant, the blood which is to be poured out for many.

Luke 22:20

In like manner after supper He took a cup of wine, and said, "This cup of wine is the new covenant to be ratified by my blood, which is to be poured out for you.

1 Corinthians 11:25

In the same way, after supper, He took the cup of wine, saying, "This cup is the new covenant ratified by my blood. Whenever you drink it, do so in memory of me."

Hebrews 8:6-12

But, as the case with Him now stands, He has entered upon a priestly service as much superior to theirs as the covenant of which He is the Mediator is superior to theirs, superior because it has been enacted upon superior promises.

Hebrews 9:15-23

And this is why He is the Mediator of a new covenant, in order that, after He had suffered death for securing redemption from the offenses committed under the first covenant, those who had been invited to share it might obtain the eternal inheritance promised them.

Hebrews 12:24

to Jesus the Mediator of the new covenant, and to the sprinkled blood which speaks a better message than even Abel's did.

Hebrews 13:20

May God, who gives us peace, who brought back from the dead our Lord Jesus, who through the blood by which He ratified the everlasting covenant, is now the Great Shepherd of the sheep,

Treasury of Scripture Knowledge

Summary

By so much was Jesus made a surety of a better testament.

Bible References

Of a

Hebrews 8:6
But, as the case with Him now stands, He has entered upon a priestly service as much superior to theirs as the covenant of which He is the Mediator is superior to theirs, superior because it has been enacted upon superior promises.
Hebrews 9:15
And this is why He is the Mediator of a new covenant, in order that, after He had suffered death for securing redemption from the offenses committed under the first covenant, those who had been invited to share it might obtain the eternal inheritance promised them.
Hebrews 12:24
to Jesus the Mediator of the new covenant, and to the sprinkled blood which speaks a better message than even Abel's did.
Hebrews 13:20
May God, who gives us peace, who brought back from the dead our Lord Jesus, who through the blood by which He ratified the everlasting covenant, is now the Great Shepherd of the sheep,
Matthew 26:28
for this is my blood which ratifies the covenant, the blood which is to be poured out for many for the forgiveness of their sins.
Mark 14:24
Then He said to them, "This is my blood which ratifies the covenant, the blood which is to be poured out for many.
Luke 22:20
In like manner after supper He took a cup of wine, and said, "This cup of wine is the new covenant to be ratified by my blood, which is to be poured out for you.
1 Corinthians 11:25
In the same way, after supper, He took the cup of wine, saying, "This cup is the new covenant ratified by my blood. Whenever you drink it, do so in memory of me."