"Faith Reviving" by Augustus Toplady

I recently read J.I. Packer's A Quest for Godliness and discovered this gem-of-a-text within. It's both a blessing and a challenge. A blessing because it reminds me of the truth that my heart so desperately needs to hear. A challenge because I spend everyday of my life trying to justify myself in the way that this hymn explains Christ has already done.

From whence this fear and unbelief?
Hath not the Father put to grief
His spotless Son for me?
And will the righteous Judge of men
Condemn me for that debt sin
Which, Lord, was charged on thee?

Complete atonement thou hast made,
And to the utmost farthing paid
Whate'er they people owed;
How then can wrath on me take place
If sheltered in thy righteousness,
And sprinkled with thy blood?

If thou hast my discharge procured,
And freely in my room endured
The whole of wrath divine,
Payment God cannot twice demand--
First at my bleeding Surety's hand,
And then again at mine.

Turn then, my soul, unto they rest!
The merits of thy great High Priest
Have bought thy liberty;
Trust in his efficacious blood,
Nor fear thy banishment from God,
Since Jesus died for thee.