As the serpent raised by Moses
Healed the burning serpent's bite;
Jesus thus himself discloses
To the wounded sinner's sight:
Hear his gracious invitation,
I have life and peace to give,
I have wrought out full salvation,
Sinner, look to me and live.

Pore upon your sins no longer,
Well I know their mighty guilt;
But my love than death is stronger,
I my blood have freely spilt:
Though your heart has long been hardened,
Look on me - it soft shall grow;
Past transgressions shall be pardoned,
And I'll wash you white as snow.

I have seen what you were doing,
Though you little thought of me;
You were madly bent on ruin,
But I said - It shall not be:
You had been for ever wretched,
Had I not espoused your part;
Now behold my arms outstretched
To receive you to my heart.

Well may shame, and joy, and wonder,
All your inward passions move;
I could crush thee with my thunder,
But I speak to thee in love:
See! your sins are all forgiven,
I have paid the countless sum!
Now my death has opened heaven,
Thither you shall shortly come.

Dearest Saviour, we adore thee
For thy precious life and death;
Melt each stubborn heart before thee,
Give us all the eye of faith:
From the law's condemning sentence,
To thy mercy we appeal;
Thou alone canst give repentance,
Thou alone our souls canst heal.

John Newton

http://www.poemhunter.com/poem/look-unto-me-and-be-ye-saved/