Why is being a citizen of God's people important for Christians?

In Ephesians 2:19, Paul clarifies that believers are no longer foreigners but fellow citizens with the saints and members of God's household. This is significant for Christians because it indicates belonging and acceptance within God's covenant community. As citizens, we have access to the promises of God, including eternal life and assurance of salvation. The notion of citizenship provides comfort and security, emphasizing that believers are integrated into the fabric of God's plan and purposes in history, and are set to partake in the blessings that come with that status. Furthermore, as members of God's household, we are called to reflect His glory and show His love to others.