What does the Bible say about trusting in God during dark times?

In Isaiah 51, God speaks directly to those in darkness, urging them to listen and trust His voice. He reminds them of their origins and the depths from which He has redeemed them, encouraging them to trust not their feelings or circumstances but His promises. Believers are called to remember that God’s comfort and salvation are assured, especially during afflictions when doubt may arise. As Romans 8:28-30 points out, those who trust in Christ are assured of His purpose and preservation.