I Corinthians 15:27-28
For He "Has put everything under His feet" (Psalm 8:6).
God the Father has made Jesus Lord over all the Creation, the whole Universe and the Angelic Host in Heaven and in Hell.
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.
Obviously God the Father is not subject to Christ, Christ Jesus does the Father's will.
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.
God is everything: He thought and spoke all creation into existence, and we all "live and move and have our being" inside Him (Acts 17:28), as though we are His imagination, and if He wasn't thinking about us all the time, we would cease to exist! He will eventually show Himself to be everything, The All-In-All (Revelation 21 & 22, especially 21:22-23). And if we're not Resurrected, how could we partake and enjoy this eternity!?!
These two verses follow the ones about King Jesus' Millennial Reign on this Earth, and refer to the New Heaven and New Earth that will last forever.
After this, Paul goes back to his defense of the reasonableness and logic of Resurrection.
Even so, come, Lord Jesus!
