This past Sunday we looked at Galatians 6:14-18 as we closed our study on the Book of Galatians. The whole book of Galatians has been the Apostle Paul's defense of the Gospel against teachers who advocated for the addition of the Old Testament rituals to the New Covenant in Christ. But Paul aggressively argues for the sufficiency of Jesus alone throughout the whole letter.
One of, if not THE main idea in Galatians is Union with Christ; meaning that "What is true of Jesus is now true of me", because of our "death and resurrection with Christ" (Galatians 2:20, Romans 6:4). The life changing truth of Jesus' life, death and resurrection represent the Christian's pride and joy, or as Paul will say, our "boast" (Galatians 6:14). In other words, He bears testimony to the fact that the spirit of Christ has worked mightily in his soul. The world, that is, all those worldly pleasures and treasures, honors and values, that tend to draw the heart away from Christ, have lost their charm.
But we also saw that Galatians 6:15 emphasizes a "new creation" over circumcision. Circumcision was the Old Testament SIGN of salvation, but was turned into a SEAL of assurance by the false teachers. Circumcision had become a false sense of security among the Galatian Church and was being dismantled by Paul in order that the Cross of Christ would be our security, which is SEALED by the SPIRIT himself (Ephesians 1:13).
By tossing Circumcision and Uncircumcision out, this means that nobody has special treatment from God based on their culture, family, "goodness", or other human standards, rather all have equal opportunity to be called a Child of God. The new creation that Paul advocated for was the active obedience of our faith (Galatians 5:6, 1 Corinthians 7:19), including baptism, the Lord's supper, good works, evangelism, prayer, etc.
These things are a SIGN of our faith, they do not guarantee our salvation, the deposit of the Spirit himself is our guarantee, our assurance, our SEAL. May we all rest in the promise that God has pledged himself to us and gave his son for our sins, and now the Spirit reminds us that we are sealed until the last day.