Why is it important that Christ must reign?

The necessity of Christ's reign is rooted in God's sovereign design and purpose. As stated in 1 Corinthians 15:25, 'For he must reign, till he hath put all enemies under his feet.' This reign is essential for fulfilling all that God has committed to His son, including the subjection of every enemy, such as sin and death, ensuring the eternal salvation of those whom He has chosen. Christ's reigning assures His people that nothing can thwart God's plan, leading to a final victory over all opposition, culminating in the resurrection and glorification of His body, the Church.