None but God would ever have thought of justifying me.
I am a wonder to myself.
I doubt not that grace is equally seen in others.
Look at Saul of Tarsus, who foamed at the mouth, against God’s servants.
Like a hungry wolf, he worried the lambs and the sheep right and left;
and yet God struck him down on the road to Damascus, and changed his heart,
and so fully justified him that before long, this man became the
greatest preacher of justification by faith that ever lived.
He must often have marveled that he was justified by faith in Christ Jesus;
for he was once a determined stickler for salvation by the works of the law.
None but God would have ever thought of justifying such a man as
Saul the persecutor; but the Lord God is glorious in grace.

Charles Spurgeon, All of Grace

You may also like:

The Blessings of Explaining your Faith                                 Why do we sing about wrath?