John Wesley on 1 Corinthians 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.