Fuel-stop devotionals.

He will sit as a refiner and purifier of silver; he will purify the Levites and refine them like gold and silver.Malachi 3:3

A refiner sits — patient, attentive, not distracted. He keeps the metal in the fire long enough to remove the impurity, but not a moment longer. The heat is intentional. And the refiner's goal isn't destruction — it's purity. He wants to see his reflection in the surface.