“Then God said, ‘Let Us make man in Our image, according to Our likeness…” (Gen. 1:26)
“Then comes the end, when He [Jesus] hands over the kingdom to the God and Father, when He has abolished all rule and all authority and power. For He must reign until He has put all His enemies under His feet…When all things are subjected to Him, then the Son Himself also will be subjected to the One who subjected all things to Him, so that God may be all in all.” (1 Cor. 15:24-28)
These verses present a fascinating look in to the first mentioning [the alpha] of the Triune nature of our God, and I believe also to the end [omega] of it. I believe the first verse indicates clearly God knew beforehand how history would unfold. First, the Creator would create the perfect man and woman to live forever in oneness with Him, they would fall to the lies of Lucifer, this would create the need for a Savior who would then reconcile man to oneness with God (John 17) through the indwelling of the Spirit. There was most definitely the need for an “US” in the makeup of God, inasmuch as the functions of each of the triune Persons of the Godhead would serve to fulfill all of these foreseen needs perfectly.
Ah, but then we come to the second verse above which seems to say at “the end” the Godhead will become, simply, “God” so He might be “all in all” throughout the remainder of eternity. How do we get from “Us” to no more need for “Us”? John 5 tells us the Father gave all judgement to the Son. John 3 tells us the Father “gave all things into Jesus’ hands” because He paid the price of reconciliation. Picture yourself as a parent who had an out-of-control, disobedient child. You had tried everything to communicate with this child, but nothing had worked. A youth leader from a local ministry builds a relationship with, and eventually gets through to your prodigal, re-opens lines of communication with him, and becomes instrumental in the reconciliation process between the two of you. Would you not then give authority to that person to be the mediator (1 Tim. 2:5) between you from then on, knowing he had succeeded where you had failed? It’s the same concept here.
Revelation 5-20 confirms it will be Jesus alone who will institute, conduct, and end the judgment of man and of earth, and will determine each man’s eternal fate. It is because the Father has given everything into Jesus’ hands I believe Paul said Jesus must reign in our hearts until such time as all on earth has been accomplished. But what happens when everything in the Bible has been accomplished?
According to Paul, at that time there will be a reversal of the dominions the Father gave the Son, as “the Son will be subjected to the One who subjected all things to Him.” In other words, the Father gave all power over man and earth to the Son for reconciling the creation back to Him, a creation He had “stopped caring for” (Heb. 8:9) prior to the New Covenant being ushered in through Jesus paying the price of blood on the cross for reconciliation. Once that reconciliation is complete, and death has been dealt with, what possible need will there be for the function of “Savior?” The Son will give all things He was given as a reward for accomplishing that salvation back to the One who gave them to Him, so that God may be One instead of three, and be “all in all” with no more need for differing responsibilities and domains of the Persons of the Godhead.
What of the Spirit when that day comes? John 14:26 tells us the Spirit was sent from the Father. John 16:12-15 tells us the Spirit does not act or speak on His own behalf, but at the behest of Jesus. So, if Jesus subjects Himself to the Father, and those two become one, would it not make sense the Spirit would return to oneness with the One who sent Him in the first place, and the One who directed Him on earth? What would the function of “Spirit” have to do when all believers will be face to face with, and in the very presence of, God? What domain will be left when there is no more need to convict sinners and guide believers, and no more earth for them to roam upon? Why would men need to be indwelt by the Spirit when they will be completely reunited, in resurrected body and spirit, with the Father and Son who have now become one?
Paul said, “Now we see in a mirror dimly [even with the Holy Spirit due to our continuing marriage to the flesh], but then face to face. Now we know in part, but then we will know fully” (1 Cor. 13:12). When we come to know fully and are fully known by God because we live fully in His very presence, there will no longer be a need for a Mediator or In-dweller. When the mess sin caused that was the reason for the triune Godhead to exist in the first place is cleaned up, the Great I AM will become our all and our everything, there will be no more need of “Us,” the “omega” of the triune nature of our God will have arrived, and He will be the One in whose presence we will spend eternity!