1 Corinthians 15:28
When he has done this, then the Son himself will be made subject to him who put everything under him, so that God may be all in all.
What an unbelievably awesome peek into the future! God the Father, the source of all power, has invested that power in Jesus to accomplish two purposes – to save mankind (Matthew 28:18) and to destroy the enemies of God. (1 Corinthians 15:25)
Once the last enemy, death, is destroyed Jesus is going to submit Himself to God, return the authority invested in Him to the Father. Imagine what a day that will be!
I see it like this. The King gives His Son all the resources necessary to go rescue His Bride and defeat every enemy that threatens her (since no enemy threatens the King Himself). The Son launches on this quest which has now lasted 2000 years. Upon retrieving His bride and destroying the last great threat, death, He returns home the conquering hero. Cheers of the angelic hosts and praises from the court await but He is not as interested in power or authority as He is interested in the goal of His quest, his beloved bride.
During what will surely be the most elaborate and glorious ceremony the universe has ever witnessed, Jesus will return the scepter, the authority, that the Father gave Him. The Father will once again become all in all, to the sheer joy and delight of all creation and Jesus will be free to spend time (eternity) with the object of His affection, His Church.
What anticipation, the hope to one day be in the crowd that participates in this spectacle! To be there as “the Lamb that was slain” receives “the reward of His suffering”.
Think of this! Jesus was not tortured and brutalized to gain power or recognition. He lays all that back at the feet of the Father. He did this because of love for you and me. That does not make us special (we know we aren’t deserving of such sacrifice) but it makes Him oh so special, so wonderful. What a Savior!
It also reminds me to hold lightly to any position, power or authority God invests in me since any position or power or authority is temporary. It is on loan from God and must one day be returned to Him. It is a stewardship – caring for that which belongs to another – for which I will give account.
1 Corinthians 15:24-28
Then the end will come, when he hands over the kingdom to God the Father after he has destroyed all dominion, authority and power.  For he must reign until he has put all his enemies under his feet.  The last enemy to be destroyed is death.  For he “has put everything under his feet.” Now when it says that “everything” has been put under him, it is clear that this does not include God himself, who put everything under Christ.  When he has done this, then the Son himself will be made subject to him who put everything under him, so that God may be all in all.