[ZNPaaneah]

The mystery of God's will in Philippians is that I may lay hold of that for which I was laid hold of by Christ Jesus.

The book begins with a communion created by God. Jesus takes the form of a servant and Paul, Timothy and Epaphroditus are in communion with God having the same mind as Jesus. They are tested, their faith is proven to be genuine, and we know the proof of them. So that we might know Him. So that we might also experience resurrection and the communion of Christ's sufferings.

All of that is the prerequisite for us to "lay hold of that for which we have been laid hold of by Christ Jesus".

But, to do that we need to "forget the things behind" and "press on to the High calling of God".