Martyn Lloyd-Jones commenting on Philippians 3:3:

There is nothing that the soul of man can need in time or eternity but that it is all in Christ. You need pardon? There it is. You need reconciliation to God? The man Christ Jesus is the one and only mediator between God and man. You need new life and a new nature? You receive it from him. You need strength and power? He sent the Holy Spirit that you might have it. You need an Advocate with the Father? There he is, seated at the right hand of God. You tremble at the thought of death and of going to face God in the judgment? You are assured that you will be clothed with his righteousness and he will present you spotless. What else do you need? He is everything: Prophet, Priest and King, the All in all.

The Life of Joy and Peace: An Exposition of Philippians (Grand Rapids:Baker, 1999), 273-274.