Why is being faultless before God important for Christians?

For Christians, the doctrine of being faultless before God is foundational to our faith. It signifies not only our justification—being declared righteous in Christ—but also our sanctification, where we are progressively transformed into His likeness. Ephesians 5:26 teaches that Christ sanctifies and cleanses His church to present it to Himself as glorious, without spot or wrinkle. The ability for Christ to present us faultless allows us to approach God with confidence, knowing that our standing before Him is based on Christ's righteousness, thus assuring us of our eternal hope and joy in His presence.