In the furnace!

From Spurgeon's, "God's People in the Furnace"

"I have chosen you in the furnace of affliction."

The furnace of affliction is a good place for you, Christian;
it benefits you; it helps you to become more like Christ,
and it is fitting you for heaven.

The more furnace-work you have the sooner you will get home;
for God will not keep you long out of heaven
when you are fit for it.

When all the dross is burned, and the tin is gone, he will say-
"Bring here that wedge of gold; I do not keep my pure gold on
earth. I will put it away with my crown jewels in the secret
place of my tabernacle of heaven."