Hebrews 9:12: Not by the blood of bullocks

Not by the blood of bullocks,
Who purchased our salvation,
But by His own
Before the throne
He makes His supplication:
The Friend of pardon'd sinners,
Of each sincere believer,
In Christ we rest
Our great High-priest,
Our Advocate for ever.

He enter'd once the holiest,
And therefore I shall enter,
Who Jesus own,
On Him alone
For full salvation venture:
The earnest and the witness,
And seal of sins forgiven
He bought for me,
With purity,
And all the joys of heaven.