With Christ I have been crucified:
Yet, live no longer I, but live in me Christ;
but now, this life [the one Christ lives in me] I live in the arena of flesh,
in the arena of faith, I live, that is, [I live] the faith that is the faithfulness of the Son of God, who loved me and gave himself on my behalf.
I have been crucified with Christ: yet, I no longer live, but Christ lives in me; but now, the life I live in the realm of the flesh [i.e., in the world and with all its fleshly systems and passions], I live in the faith [i.e., in the realm of the faith], that is, the new age inaugurated in Christ, who loved me and gave himself on my behalf.
Seems to me this verse, Gal 2:20, calls us to live a life based on the new age hushered in by the Spirit (i.e., the new age of the kingdom) that was inaugurated in Christ’s faithful action of the cross (the reason Paul says, “I have been crucified with Christ,” 2:20a, which centers on the cross); rather than living by the passions and systems of the flesh that make up the way the world around us works (cf. the fruit of the flesh vs. the fruit of the Spirit later in Gal 5:16-24). This text reminds us, as Christians and as church, we are wholly different. Very much like Jesus’ words in John 17 that we are in the world, not of the world.
This goes with the church-problem that Paul seems to be addressing, that is the nature of the gathered-church. Paul illustrates this by his previous rebuke of Peter (cf. Gal 2:11ff.), who, for whatever reason, had separated himself from Gentile believers at the table (probably a reference to the Lord's Supper of the gathered-church). Additionally, Gal 2:20 is not far from the implications of Paul's words in Ephesians 2:11-22: note the centrality of the cross (i.e., crucifixion as the means by which the wall (i.e., separation) is broken down between believing Jew and believing Gentile, making the two (literally, the both) one new humanity (in Christ), which is the household of God, being built up as a holy temple (i.e., the gathered-church).
Therefore remember that at one time you Gentiles in the flesh, called “the uncircumcision” by what is called the circumcision, which is made in the flesh by hands— remember that you were at that time separated from Christ, alienated from the commonwealth of Israel and strangers to the covenants of promise, having no hope and without God in the world. But now in Christ Jesus you who once were far off have been brought near by the blood of Christ. For he himself is our peace, who has made us both one and has broken down in his flesh the dividing wall of hostility by abolishing the law of commandments expressed in ordinances, that he might create in himself one new man in place of the two, so making peace, and might reconcile us both to God in one body through the cross, thereby killing the hostility. And he came and preached peace to you who were far off and peace to those who were near. For through him we both have access in one Spirit to the Father. So then you are no longer strangers and aliens, but you are fellow citizens with the saints and members of the household of God, built on the foundation of the apostles and prophets, Christ Jesus himself being the cornerstone, in whom the whole structure, being joined together, grows into a holy temple in the Lord. In him you also are being built together into a dwelling place for God by the Spirit.
I am the author of Wasted Evangelism: Social Action and the Church's Task of Evangelism, a deep, exegetical read into the Gospel of Mark. All royalties from this book go to support our church planting ministry in the Hill community of New Haven, CT. The book and its e-formats can be found on Amazon, Barns'n Noble, (and most other online book distributors) or through the publisher, Wipf & Stock directly.
For more information on our church plant >> Learning Local in The Hill