25 For He must reign till He has put all enemies under His feet. 26 The last enemy that will be destroyed is death. 27 For “He has put all things under His feet.” But when He says “all things are put under Him,” it is evident that He who put all things under Him is excepted. 28 Now when all things are made subject to Him, then the Son Himself will also be subject to Him who put all things under Him, that God may be all in all. (1 Corinthians 15:25–28, NKJV)
Jesus Christ is reigning at the right hand of God, “far above all principality and power and might and dominion, and every name that is named, not only in this age but also in that which is to come” (Ephesians 1:21). He is King today, and will continue to reign until death – the “last enemy” – is destroyed at the resurrection of the dead. Only God the Father, who gave all authority to the Son, and to whom the kingdom will be delivered, is exempt from being under the Son’s powerful authority (Matthew 28:18; Ephesians 1:20-23). Christ’s return will be the grand summation of God’s plan of human redemption. The delivery of the kingdom to God the Father will usher in the everlasting kingdom in which righteousness dwells and over which God will reign forever and ever (2 Peter 1:11; 3:13; Revelation 21:22-22:5). The gospel calls us to submit to the authority of Christ with full, obedient faith. By doing so we are preparing to live with Him forever when He returns (John 14:1-6).