Our position in Adam has been satisfied in our Federal position in Christ. So how are we to live? Is our position just a static positional reality in Christ? Do we just get out of jail free and that ends what Christ has achieved for now?
Romans 6 tells us otherwise! Yes, our union with Christ involves our justified position before a holy God. Yes, our union with Christ will one day result in a glorified body. But now, we participate in one of the most dynamic verities of all of Scripture! God has designed his grace to be magnified in our lives NOW! Of course this grace is not simply a grace of forgiveness, but it is a grace that frees our faculties from the bondage of unrighteousness to victorious Christ-like living.
We are privileged through our union with Christ to put him on display in a dark world. Just as John 1 speaks of the Light that entered time and space, searing the darkness with supernova-like intensity, so our lives now actively stand as beacons for Christ.
How is this accomplished? It is accomplished in moment by moment indebtedness to the infinite bounty of grace purchased up by Christ. Recently, I was sitting in a seminary class where one asked about our indebtedness to Christ. The response to the question, sadly, did not place indebtedness in a positive light when it is in fact one of the most glorious dynamics of the Christian walk. Indebtedness to God's grace is exactly how we are to live - moment by moment accruing debt to God with no sense (at all!) of guilt. Why? So that God might be magnified! God is achieving his glory through our culpable inability to gain righteousness through justification and now through our inability to conquer sin and live out righteousness moment by moment in sanctification.
We are under GRACE! in Christ. So live out your union with him by falling into further debt to his grace so that you find Christ-like satisfaction in magnifying the Father who has put Christ forward as the purchasing token of grace.