Why is the concept of headship important for Christians?

The doctrine of headship explains how Christ and Adam serve as representatives of humanity. Through Adam, all are born into sin and spiritual death due to his transgression; however, through Christ, believers are positioned to receive grace and justification. This theological understanding emphasizes that our standing before God is not based on our works but on being united with Christ by faith. Consequently, recognizing Christ as the last Adam inspires believers to live in accordance with their new identity—born again and justified, thus encouraging them to pursue holiness and righteousness as an expression of gratitude for their salvation.