After and because God has given Christians everything we need to live, we should make every effort to supply what our faith needs in order to grow (2 Peter 1:5-11).
The model described in Colossians 4:2-6 of ministry to those outside the church is very simple: pray, walk, and talk.
Paul addressed a serious conflict in the church and how to live differently: in unity, joy, gentleness, peace, and goodness.
In this thank you letter to the Philippians, Paul teaches us about giving for missionary work.