Here is another version as sung by The Crusaders:

THE REFINER'S FIRE

WE ARE OFTEN TRIED IN THE WALK OF LIFE
SOMETIMES, WE ARE TEMPTED TO QUIT
THE PAIN WE MUST BEAR, THE HURT BEYOND COMPARE
THEN WE QUESTION, LORD WHEN WILL THIS END?
IT IS THEN WE MUST TURN TO THE LORD AND REST IN HIM AND
KNOW HE IS WORKIG FOR OUR BEST
WHEN WE COME THROUGH THE FIRE, WITH HIS GLORY WE SHALL SHINE
PRAISE THE LORD FOR HIS REFINING FIRE

(CHORUS)
THE REFINER'S FIRE IS NOT EASY TO BEAR
BUT WE WERE NEVER PROMISED A LIFE WITHOUT CARE
GOD'S GRACE WILL BE THERE EVERY STEP OF THE WAY
AT THE END, WE SHALL BE LIKE HIM

OH, MY FRIEND DON'T DESPARE, JESUS LOVES YOU
YES HE CARES ABOUT YOU AND THE BURDENS THAT YOU BEAR
HE HAS WALKED DOWN LIFE'S ROAD, YES,
HE KNOWS YOU FEEL A LOAD IN THE STRUGGLES
THAT YOU'RE HAVING IN YOUR LIFE
DON'T GIVE UP, JUST TRUST IN HIM, YOU HAVE NOTHING TO LOSE
IT'S IN OUR WEAKNESS THAT HIS STRENGTH IS REVEALED
WHEN YOU COME THROUGH THE FIRE, WITH HIS GLORY YOU WILL SHINE
JUST PRAISE THE LORD FOR HIS REFINING FIRE
(REPEAT CHORUS)
GOD'S GRACE WILL BE THERE EVERY STEP OF THE WAY
AT THE END WE SHALL BE LIKE HIM.
GOD'S GRACE WILL BE THERE EVERY STEP OF THE WAY
AT THE END WE SHALL BE LIKE HIM.

Here are the lyrics:

The Refiners Fire
There burns a fire with sacred heat
White hot with holy flame
And all who dare pass through its blaze
Will not emerge the same
Some as bronze, and some as silver
Some as gold, then with great skill
All are hammered by their sufferings
On the anvil of His will
Chorus:
The Refiner's fire
Has now become my souls desire
Purged and cleansed and purified
That the Lord be glorified
He is consuming my soul
Refining me, making me whole
No matter what I may lose
I choose the Refiner's fire
I'm learning now to trust His touch
To crave the fire's embrace
For though my past with sin was etched
His mercies did erase
Each time His purging cleanses deeper
I'm not sure that I'll survive
Yet the strength in growing weaker
Keeps my hungry soul alive
Chorus

That is a Steve Green Song called The Refiners Fire from his Mission Album I think. Great song.

I am trying to find a hymn whose subject is the blessings that come from suffering for the Lord's sake in our own lives. The metaphor of "The refiners fire" is used throughout. The hymn also contains the phrase "the anvil of His will".