"These trials will show that your faith is genuine. It is being tested as fire tests and purifies gold—though your faith is far more precious than mere gold. So when your faith remains strong through many trials, it will bring you much praise and glory and honor on the day when Jesus Christ is revealed to the whole world."
1 Peter 1:7 NLT
Trials are a criterion that God uses to test and increase our faith in Him and develop our trust in His Word.