Paul proceeds from the traditional understanding of angelic spirits that was characteristic of the Judaism of his era. In Judaism, angels are only lower created spirits, and specifically ministering and serving spirits who carry out entirely concrete assignments from God. They are close to God, but God did not set before them the broad tasks He set before humanity.
The world has been given into the authority of humanity, not of angels. And not least because, unlike an angel, a human being's spiritual life has a dynamism determined by his relationship with God. Angels, in their present state, possess the entire fullness of life available to them; they do not require spiritual formation - at least this is how the author of the epistle sees them. A human being, however, is constantly in the process of becoming, and precisely for this reason he can in the end become the ruler of the universe, the ruler appointed by God into whose authority the world is given.
But in the fallen state, the human being does not correspond to God's design for him, and the only one who is truly able to subject the world to Himself is the Messiah, for He alone can be called Man in the fullness of human nature. The world submits to the Messiah not only by virtue of His divinity, but also by virtue of His humanity, and even first of all by virtue of His humanity. The fullness of God revealed to the world within human nature is exactly what is needed for the full existence before God's face of both the world as a whole and the human being himself.
And the world's becoming before God is inseparable from humanity's becoming before God and in God - and that means it is inseparable from the person of the Messiah Himself. The being of the universe is connected with the existence of humanity, and the existence of humanity in turn is connected with the existence of the Messiah. This connection is dynamic; it presupposes the becoming of the world and of humanity in Christ and around Christ. Angels, however, play a purely ministering role in this process. They have no need of becoming; they are full in themselves from the beginning, and therefore they surpass the human being in his present state, for fallen humanity has been deprived of the fullness of life. But a human being who has reached the fullness of his life surpasses the fullness of the angel's life - this is one of the main ideas of the author of the epistle.
