Why is it important for Christians to walk by faith?

2 Corinthians 5:7 emphasizes that 'we walk by faith, not by sight.' This principle is crucial for all believers, as it encourages us to rely on God's promises and character instead of our changing circumstances or feelings, which can lead to doubt and fear. In the passage about Peter walking on water, his ability to walk was tied to his focus on Jesus. When he looked at the wind and the waves, he began to sink, illustrating that our spiritual vitality depends on maintaining our gaze fixed on Christ. By walking in faith, we actively trust in His sovereignty and power over our lives, enabling us to face trials with confidence and assurance that He is in control.