What does Philippians 2:13 mean?
In verse 12, Paul commands the Philippian Christians to "work out [their] own salvation," meaning they are to put the truth of their belief into practice. What they are in Christ needs to be "worked out" through their actions and attitudes. The reason for this command is given here in verse 13: God is acting through the lives of these believers. This understanding should lead believers to a deep sense of awe and appreciation.Paul then adds two areas in which God operates in the life of the believer. First, God works in us to "will" His good pleasure. This includes the idea of placing desires or leading a believer to serve the Lord.
Second, God works in us "to work" for His good pleasure. God's Spirit in the believer gives both the desire and the strength to live for the Lord. "Work" appears as a common theme in this letter (Philippians 1:6; 2:12, 25, 30; 4:3). The idea of "his good pleasure" involves obedience (Philippians 2:12) according to God's Spirit. This is not the legalistic obedience of the law that Paul speaks against in the false teachings of the circumcision group, but rather obedience based on a love for God based on the Spirit living within the believer.