1 Corinthians 15:27-28

27For He (the Father) has put all things in subjection under His (Christ’s) feet. But when He says, “All things have been put in subjection [under Christ],” it is clear that He (the Father) who put all things in subjection to Him (Christ) is excepted [since the Father is not in subjection to His own Son].

28However, when all things are subjected to Him (Christ), then the Son Himself will also be subjected to the One (the Father) who put all things under Him, so that God may be all in all [manifesting His glory without any opposition, the supreme indwelling and controlling factor of life].