This heavenly citizenship — which is ours through membership in Christ’s Body, the Church — makes us a “peculiar people” (1 Peter 2:9, KJV). Every rival loyalty must be submitted to the surpassing reality of our incorporation into Christ (Gal. 3:28-29; 1 Cor. 12:13). But this relativizing of other loyalties does not mean their diminishment — quite the opposite!
We love Jesus not by loving others less but precisely through loving them rightly. Saints Paul and Peter make it abundantly and repeatedly clear that loving your spouse, your children, and your parents, so far from being in conflict with heavenly citizenship, are in the fact the very ways in which we love Jesus. Romans 13 and 1 Peter 3 affirm that part of being a good Christian is being a good earthly citizen. These other loyalties are relativized not by being diminished but by being brought into right relation with our ultimate identity as members of the Church.
Problems arise not when our love for family or country becomes too great but when our love is disordered. And in this fallen world, these other entities — family, country — can and inevitably will at times demand that they be your primary loyalty, that all things be made subject to them rather than to the Lord Jesus Christ.Read (or listen to) the whole thing.