Paul didn't serve alone. A team of six exemplary men surrounded him. These brothers, like Paul, cared for the Colossians and sent their warm greetings.
Paul wraps up his letter with commendations, greetings, and final words. The first of these is found here: a warm introduction to two faithful brothers.
The comprehensive command to do all things in the name of the Lord is now applied to everyday household relationships. The Lord wants our social relationships to be sanctified. Paul first deals with marriage and family.
Paul continues on the topic of Christian harmony, giving instructions about the peace of Christ and the word of Christ. He also commands that all actions be done in line with the character and authority of the Lord Jesus.