Finally, brothers, whatever is true, whatever is noble, whatever is right, whatever is pure, whatever is lovely, whatever is admirable--if anything is excellent or praiseworthy--think about such things. Whatever you have learned or received or heard from me, or seen in me--put it into practice. And the God of peace will be with you. Philippians 4: 8-9 (New International Version)
The Letter to the Philippians is easily the most positive of all Paul's writings. This church received the Gospel, and continued to support the Apostle's evangelistic efforts. There is no hint of trouble or controversy within the church. Moreover, Paul feels comfortable enough to share with this church his indecision about whether or not to "go and be home with the Lord," or "remain with you." Such intimate ruminations are only shared with close friends.
In these final verses, Paul lays out the pathway for revealing Christ through the life we live. While we will never be perfect, because sin is still a part of who we are, we can allow the Spirit to guide in our state of being perfected. That is, Jesus set the example of humility and obedience for His followers, lived out in servanthood. That is the model we must both follow and adopt if we are to be successful in our efforts to herald Good News to the ends of the earth.
The plan for life hasn't changed, even today. True, the world eschews humility as a sign of weakness, and feigns obedience based on self-determination, rather than adhering to the truth of God's Word. However, the Gospel is about offering people and the world Christ, not our message, nor our church. We must trust that our efforts of planting and watering seeds of Good News will allow God to give the increase of those who become His by faith.