Why is the concept of being 'only a sinner saved by grace' important for Christians?

The notion of being 'only a sinner saved by grace' encapsulates the core of the Christian faith, reflecting our total dependence on God's mercy rather than our works. It underscores the reality that all believers are equally in need of grace, portraying salvation not as a result of our righteousness but God's sovereign choice. This perspective fosters humility and gratitude, driving Christians to live in a manner that honors Christ and encourages them to share the gospel joyfully with others.