Why is understanding the truth of the gospel important for Christians?

The truth of the gospel reveals the righteousness of God, which is foundational for the believer's assurance of salvation. Romans 1:16-17 emphasizes that the gospel is the means through which God reveals His righteousness. Without a clear understanding of this truth, believers may struggle to comprehend the significance of Christ's work and the assurance of their salvation. This truth not only brings hope but also sustains believers through trials by assuring them of God's faithfulness to His promise of redemption.