How do we know our nature has changed in Christ?

The transformation of a believer's nature becomes evident as they begin to live in ways that accord with their new identity in Christ. This change is not merely behavioral but involves a profound spiritual renewal. As indicated in 2 Corinthians 5:17, those in Christ are new creations; old things have passed away and all things have become new. The Holy Spirit empowers believers to mortify sin and embrace godly living, reflecting the truth that they are indeed God's elect called unto righteousness.