What does it mean to be part of the spiritual Israel?

To be part of spiritual Israel is to be included among God’s elect, individuals chosen by God to receive His grace and blessings through faith in Jesus Christ. The sermon delineates how the physical descendants of Abraham do not automatically qualify as God's spiritual children; it is those who are united with Christ, the promised Seed, who truly partake of God’s everlasting covenant promises. This union with Christ secures a believer's identity in the family of God, affirming that irrespective of one’s background, all who trust in Christ belong to this spiritual lineage.