Isaiah 64:1: My sins as mountains rise

My sins as mountains rise,
Till Thou the heavens rend,
And lo! I lift my longing eyes
To see my Lord descend:
Before Thy glorious face
The mountains shall remove:
Then, Saviour, all my life is praise.
And all my heart is love.

Beneath a mountain-load of night,
Of unbelief, I groan,
Till Thou, the true, eternal Light,
To my relief come down,
My darkness by Thy presence chase,
My weight of sin remove;
And show the brightness of Thy face,
In manifested love.

If Thou vouchsafe Thy face to show.
If Thou appear again,
My mountain-sins shall melt and flow,
And pass into a plain.
Fix then Thy presence in my heart,
Be Thou my perfect power.
And unbelief shall all depart.
And pride exist no more.