After all that Paul has said about the Christian’s relationship to the church, we come to what is arguably the most radical command in all Scripture. We saw it briefly in verse 14, but in verses 17-21 Paul now focuses on our relationship to the world, and the Christian’s display of non-retaliating love. In this sermon pastor Matt reminds us once more how love is the indispensable mark of the new humanity created in Christ Jesus. We prove to be God’s beloved children not only as we display his love in the household of faith, but also as we extend that love to our enemies in an unjust world.