“And when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all.”
King James Version (KJV)
15:28 The Son also shall be subject - Shall deliver up the mediatorial kingdom. That the three - one God may be all in all - All things, (consequently all persons,) without any interruption, without the intervention of any creature, without the opposition of any enemy, shall be subordinate to God. All shall say, My God, and my all. This is the end. Even an inspired apostle can see nothing beyond this.
1Co 15:28 When all things shall be subdued unto him. When the world is subdued to Christ. Then shall the Son also himself be subject unto him. Then, as his work is done, he will give up the kingdom to the Father (1Co 15:24). Then Christ will give up the seals of office.