“In the flow of the chapter, then, Paul makes these points, at least in part, to insist that the Philippian believers emulate those whose constant confidence and boast is in Christ Jesus and in nothing else.
Most who read these pages, I suspect, will not be greatly tempted to boast about their Jewish ancestry and ancient rights of race and religious heritage.
But we may be tempted to brag about still less important things: our wealth, our status, our education, our emotional stability, our families, our political or business successes, our denominational alignments, or even about which version of the Bible we use.
Be careful of people like that.
They tend to regard everyone who is outside their little group as somehow inferior. Somewhere along the way they inadvertently—or even intentionally and maliciously—imagine that faith in Christ Jesus and delight in Him is a little less important than their personal accomplishments.
Instead, look around for those whose constant confidence is Jesus Christ, whose constant boast is Jesus Christ, whose constant delight is Jesus Christ.
Jesus is the center of their worship, the center of their gratitude, the center of their love, the center of their hope.
After that, doubtless we shall sometimes need to argue about relatively peripheral matters. But in the first instance, emulate those whose constant confidence and boast is in Christ Jesus and in nothing else.”
–D.A. Carson, Basics for Believers: An Exposition of Philippians (Grand Rapids, MI: Baker Books, 1996), 86.