God uses trials with a purpose in mind—He never wastes anything.

Here we get to the heart of the issue.

Faith produces endurance, or steadfastness. “Steadfastness” implies staying behind or waiting patiently. This is not passive acceptance, but a persistent determination to walk through a trial as a winner, someone who clings tenaciously to God in perfect peace. This is patience that makes a man stand on his feet and face the storm head-on, being strong in the Lord. This is the active, heroic endurance to aggressively wait in the strength given by God. This is exactly what we need in trials and is promised to you as a believer in Christ.

Steadfastness is a virtue gained gradually and painfully, not by reading books about perseverance, but by walking through pain.

S. Swartz