Why is the concept of salvation in Zion important for Christians?

The reference to salvation in Zion emphasizes that God's salvation is intimately connected with the church, which is often represented as Zion in Scripture. This signifies that the Gospel spreads from the church and reaches all parts of the world. As believers, we identify ourselves as citizens of this spiritual Zion, the heavenly Jerusalem, where God promises to establish His presence and glory. This concept reassures us of God's sovereign plan for redemption and our place within it, as outlined in Hebrews 12:22.