1 Peter 1:7

The sorrow comes in order that the testing of your faith--being more precious than that of gold, which perishes and yet is proved by fire--may be found to result in praise and glory and honour at the re-appearing of Jesus Christ.

1 Peter 4:12

Dear friends, do not be surprised at finding that that scorching flame of persecution is raging among you to put you to the test--as though some surprising thing were accidentally happening to you.

Treasury of Scripture Knowledge

Summary

As the fining pot for silver, and the furnace for gold; so is a man to his praise.

Bible References

The fining

1 Peter 1:7
The sorrow comes in order that the testing of your faith--being more precious than that of gold, which perishes and yet is proved by fire--may be found to result in praise and glory and honour at the re-appearing of Jesus Christ.
1 Peter 4:12
Dear friends, do not be surprised at finding that that scorching flame of persecution is raging among you to put you to the test--as though some surprising thing were accidentally happening to you.