In chapter one of Philippians, Paul encouraged the church at Philippi, "Being confident of this, that He who began a good work in you will carry it on to completion until the day of Christ Jesus" (vs. 6). He was in prison at Rome, and he also shared, "For to me, to live is Christ and to die is gain" (vs. 21). He was ready to die and be with the Lord, but he also knew God was not finished with him yet. He told the church, "Whatever happens, conduct yourselves in a manner worthy of the gospel of Christ" (vs. 27a), even in the midst of their suffering.
This leads into chapter two as a reminder of some of the benefits we have in Christ Jesus. Christians are united in Christ, comforted by His love, joined in fellowship with the Holy Spirit, we do not fear God's wrath, but we experience His tenderness, compassion, and love, and because of that Paul encouraged the church to be united in Christ in joy, love, and purpose. He reminded them of the humility of Christ Jesus who was willing to leave His glory, come to earth as human, and then to die, and not just a natural death, but by hanging on the cross, a tree, to take the curse and wrath that was intended for us, so that we could then become a part of the family of God. If Jesus was willing to humble Himself, so should we. Since Jesus willingly obeyed the Father, the Father raised Him up above everything and everyone, and "at the name of Jesus, every knee should bow, in heaven and on earth and under the earth, and every tongue confess that Jesus Christ is Lord, to the glory of God the Father" (vss. 10-11). As believers, we are to work out our own salvation with fear and trembling as God works in us. Then as a community of believers who work together, we will shine like stars in our dark world. Chapter two ended with plans of sending Timothy to them when he found out the outcome of his imprisonment. Now Paul is sending Epaphroditus back to them to encourage them with this letter and thank them for their support of Paul.