John 5:27

To execute judgment also; to have the power of life and death, the keys of both; to rule and govern the world, and to judge it at the last day.

Because he is the Son of man: Acts 17:31, He hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained, &c. So Philippians 2:8, Being found in fashion as a man, he humbled himself, and became obedient unto death, even, the death of the cross. Wherefore God also hath highly exalted him, & c. Some think that the sense is, because he was that Son of man, who was the Seed of the woman, promised Genesis 3:15; the Son of man prophesied of by Daniel, Daniel 7:13,Daniel 7:14. And that the term, Son of man, here, signifieth his office as Mediator.