This union with Christ brings glory to the Father because of the fruit you produce in Christ. Here is the proof, or assurance, of salvation. You are dying to the world and living for God. This only happens when you are in Christ. You start producing the Fruit of the Spirit and God answers your prayers for His glory and your good.
Are you worried about whether or not you are a Christian? It is not a matter of being good enough. Christ has been good enough for you, but does your life reflect Christ and his salvation?
