"For I am confident of this very thing, that he who began a good work in you will perfect it until the day of Christ Jesus." (Phil.1:6, NASB)Here in this verse, the Apostle Paul summarizes the great theme of security laid out in his magnum opus, the letter to the Romans. In the Greek text, Paul's certainty of the fulfilment of the believer's salvation is expressed in a mere fifteen words (ninety-seven characters--how's that for coming in under the limit for a tweet?), yet it is frontloaded with rich theology.
The foundation of his confidence is where those who reject eternal security usually go off the rails, for if the fulfillment of salvation is dependant upon us even in the slightest bit, then we have good cause for concern. But Paul does not look to the Philippians as the means of this future perfection. Rather, his confidence is in God (v.3). It is God who set these saints apart as holy (that's what the word saint means), and Paul is absolutely certain that what God starts, He finishes. He will see them through to the end result. He will accomplish what He started. He will not lose a single one, but all who have had this good work begun in them will see it realized. This is no mere hope for Paul the way we so often understand hope, as something that is uncertain of actually coming to pass as when a trembling young man with sweating palms shyly asks a young lady to prom. Rather, this is Paul's certainty, his absolute assurance, his confident expectation. No matter what happens, Paul is confident that God will finish the work of salvation which He started. And the realization will be accomplished through the same means by which it was initiated--through Jesus Christ. His finished work on the cross saved them; His glorious appearing will perfect them.
Here, then, is the perfect summary statement to describe the extended teaching on the security of the believer that Paul presents in Romans 5-8. Those whom God has justified, Paul writes in Romans 5:1, have peace with God. That is the state of our relationship with God, dear Christian friend. The enmity has been replaced by peace. Where before we were the objects of God's wrath, now, because Jesus has taken our place and bore our punishment, we are now sons. Where before we looked to Him with only the anticipation of judgment, now we look to Him as a son looks to a father. Finally, we are at peace.
And Paul says that, as a result, we exalt in the glory of God. In Romans 3:23, it was the glory of God which we had fallen short of in our sinfulness. It was this glory, this fulness of all that God is in His being and Person that stood beyond our reach, and now Paul says that we exalt in it! We rejoice in it! We savor it! And when it is revealed in all its majesty on the day of Christ Jesus, it shall not bring death to us, but perfection and completion. Where now we see in a mirror dimly, in that day we shall see face to face. In that day we shall exalt in the glory of God, for that is why we were redeemed in the first place, "to the praise of the glory of His grace."
Romans 5 continues to demonstrate the reality that our justification by faith is a secure and unchanging justification, for if God has accomplished the greatest, most difficult thing possible--reconciling us while we were helpless sinners and enemies, then certainly He will do the easier thing, which is to complete what He started. He has already done the hard part--saving us. He most certainly will do the easy part--perfecting us. Through Jesus Christ He has transferred us from the mastery of sin and its cadaverous consequence to a new Head, Whose one act of obedience has produced righteousness and life. The wages of sin are most certainly death, but Paul's confidence for the Philippian believers is the provision of the free gift of eternal life!
In Romans 6-7 Paul turns to the life of the believer and the freedom to live righteous lives, yet even this is related to the security of the believer, for here we read that we have been raised from the dead with Christ. God has given us new life in Jesus Christ, and this new life is the birthday of this good work which He has begun in us and will complete. The flesh rebels, yet the field will be the Lord's!
Paul's confidence that the battle will be won is expressed in two phrases in Romans 8 which serve as bookends to the chapter: "Therefore there is now no condemnation for those who are in Christ Jesus" (v.1) and nothing "will be able to separate us from the love of God, which is in Christ Jesus our Lord" (v.39). No condemnation and no separation--that is the reality for the believer who has trusted in Christ. Truly, then, if God is for us, who is against us? And God really is for us! He gave up His Son in order to set into motion a plan, originated in eternity past, in which He would purchase us for Himself. The scourging, the cross, the tomb, all of it was so that He might purify for Himself a people that are His very own, to the praise of the glory of His grace.
Romans 5-8, then, encapsulated in fifteen words in the greeting of the letter to the Philippians. What God has started, He will finish. What is incomplete will be completed. What is imperfect will be perfected. And one day, when Jesus returns, we will know this completion, and we will exalt in the glory of God, for He will have completed what He started and fitted us perfectly to glorify Him for eternity.
Sola Deo Gloria!