They belong to Christ and owe him complete obiedence. They are Christ's property, body and soul, at his complete and continuous disposal. This constitutes the entire church at Philippi. The difference being, they have a relationship with Jesus Christ. The bishops were the spiritual leaders in the church while the deacons were those who were responsible for the temporal and material needs of the congreation.
Grace brings peace.
The peace of God is never enjoyed were his grace has not been applied. Paul never writes a greeting were peace precedes grace. Paul had been torn apart until he met Christ and experienced his boundless grace.