Why is it important for Christians to trust in Christ's work?

For Christians, trusting in Christ's finished work is paramount because it separates true faith from self-righteousness. When believers rely on their actions or character, they risk falling into the trap of legalism, which ultimately leads to spiritual pride or despair. The New Testament consistently points to faith in Christ alone for salvation (Ephesians 2:8-9), highlighting that salvation is a gift that cannot be earned. As Christians abide in Christ and His Gospel, they experience transformation that is a product of grace rather than an effort to validate themselves through works.